Recent Homework Questions About Biology
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Biology-Respiratory System
What's the difference between capillaries, pulmonary artery and pulmonary vein?
Saturday, December 11, 2010 at 3:45pm
Biology
Angiosperms (flowering plants) are the largest phylum in the plant kingdom (Angiospermophyta is also called Anthophyta or Magnoliophyta). These plants have true roots, stems, leaves, and flowers. The roots grow into the soil to anchor the plant in place and take up water and ...
Friday, December 10, 2010 at 8:27am
biology
define PI-PCL and indicate which phospholipids it hydrolizes
Thursday, December 9, 2010 at 9:02pm
biology
discuss the function of an active adenylate cyclase
Thursday, December 9, 2010 at 9:01pm
biology
discuss the difference between passive diffusion and active transport processes
Thursday, December 9, 2010 at 8:59pm
ant101
How does the identification of cultural universals impact our understanding of what it means to be human? How does the search for universals help us better understand human cultural behavior? What examples from your own culture can illustrate the ideas that our behaviors are ...
Thursday, December 9, 2010 at 7:52pm
biology
What regulary hit the earth for the first 600 million years of existence? What do scientists call this period of time? - Aseroids, and meteors hit the earth.What do scientists called this period of time ? I need help answer this question please. If the first question is right ?
Wednesday, December 8, 2010 at 8:36am
Honors Biology - URGENT!!!
In an experiment, plants were grown under colored filters that allowed equal amounts of light of different colors to strike different plants. Under which filter do you think plants grew the slowest? Why?
Wednesday, December 8, 2010 at 8:19am
Honors Biology - URGENT!!!
Without oxygen, cellular respiration grinds to a standstill, although glycolysis can continue to make some ATP anaerobically for a short time. When oxygen runs out, why does electron transport stop? Why do you thing the Krebs cycle stops?
Wednesday, December 8, 2010 at 8:18am
Honors Biology - URGENT!!!
After a biochemical analysis of the victim's tissues, brilliant biologist/criminal investigator J. C. Mickleberry announced his findings: "Contrary to the conclusions of the police, the victim did not suffocate. The electron carriers in his mitochondria were all in ...
Wednesday, December 8, 2010 at 8:17am
Honors Biology - URGENT!!!
ATP is used to power the movement of your muscles as you turn the pages of a book. Where did the energy in the ATP come from? Trace the energy in the ATP molecule back to the sun.
Wednesday, December 8, 2010 at 8:16am
Honors Biology - URGENT!!!
Remember that the greater the concentration of hydrogen ions, the lower the pH of a solution. How do you suppose the pH of the solution in the thylakoid space compares with the pH of the solution in the stroma? What is responsible for the difference?
Wednesday, December 8, 2010 at 8:15am
Honor Biology
Remember that the greater the concentration of hydrogen ions, the lower the pH of a solution. How do you suppose the pH of the solution in the thylakoid space compares with the pH of the solution in the stroma? What is responsible for the difference?
Monday, December 6, 2010 at 4:02pm
Honor Biology
ATP is used to power the movement of your muscles as you turn the pages of a book. Where did the energy in the ATP come from? Trace the energy in the ATP molecule back to the sun.
Monday, December 6, 2010 at 3:59pm
Honor Biology
After a biochemical analysis of the victim's tissues, brilliant biologist/criminal investigator J. C. Mickleberry announced his findings: "Contrary to the conclusions of the police, the victim did not suffocate. The electron carriers in his mitochondria were all in ...
Monday, December 6, 2010 at 3:57pm
Honor Biology
In an experiment, plants were grown under colored filters that allowed equal amounts of light of different colors to strike different plants. Under which filter do you think plants grew the slowest? Why?
Monday, December 6, 2010 at 3:55pm
Honor Biology
Without oxygen, cellular respiration grinds to a standstill, although glycolysis can continue to make some ATP anaerobically for a short time. When oxygen runs out, why does electron transport stop? Why do you thing the Krebs cycle stops?
Monday, December 6, 2010 at 3:54pm
Biology
If a heterozygote is crossed with a recessive individual, what % of their offspring will be recessive (have light hair)?
Sunday, December 5, 2010 at 2:01pm
biology
Produce a family tree for at least three generations of your family or a friend's family following these genetic traits: Eye color Hair color
Saturday, December 4, 2010 at 7:03pm
Biology
Identfing the mixture soil and water
Saturday, December 4, 2010 at 12:47pm
biology
a fruit is most commonly _______? A. modified root B. a mature female gametophyte c. mature ovary d. a thickened style e. enlarged ovule
Saturday, December 4, 2010 at 8:37am
Biology
Skin color is the result of: A. the quality of melanin in the skin B. the number of macrophages C. the amount of fat in the epidermis D. stratum basale and the thickness of those cell. Cant really find any of those answers. Thanks for helping!
Friday, December 3, 2010 at 3:09pm
Biology
I need help making a concept map. I have to put the following words into one and i dont know where to start. Gene DNA Chromosome Mutations Protiens Central Dogma Signal Transduction Nucleus mRNA tRNA rRNA Ribosomes Autosomes Sex Chromosomes Recessive Translation Transcription ...
Friday, December 3, 2010 at 12:38pm
Biology / DNA / science
Hi, Can anyone confirm my answer here.. I need to determine familial relationship Body 1 Body 2 Body3 Locus 1 14,19 16,18 14,18 Locus 2 15,21 18,18 17,21 Locus 3 11,11 12,13 11,12 Locus 4 18,19 18,24 18,23 Locus 5 13,14 14,15 12,14 Locus 6 29,29.2 29,31.2 29,31.2 Locus 7 13,17...
Friday, December 3, 2010 at 8:42am
Biology
Explain your liver's role in changing your blood sugar level
Friday, December 3, 2010 at 12:20am
Biology
A cell that is entering the M phase of the cell cycle is: A. always diploid, either with duplicated or unduplicated chromosomes B. always haploid, always with duplicated chromosomes C. either haploid or diploid, always with duplicated chromosomes D. either haploid or diploid, ...
Thursday, December 2, 2010 at 11:49pm
biology
what are the characteristics that link plants with green algae??
Thursday, December 2, 2010 at 10:09pm
Biology
Please help !!!! two bacteria, "Claire" and "Bob" are infected with a virus. Claire explodes several hours later and Bob lives happily ever after.... until one day when Bob feels stressed out and all the sudden, explodes as well. What happened to bacteria &...
Thursday, December 2, 2010 at 2:13pm
biology
Which of the following is NOT a function of hormones? a. initiate behavior and reproduction b. coordinate the production and use of energy c. maintain nutrition and metabolism d. react to stimuli from outside the body B?
Thursday, December 2, 2010 at 10:35am
Biology
Give an example of a tandem cluster and describe which protein it will produce.
Wednesday, December 1, 2010 at 8:25pm
Biology
This question refers to the replication cycle of viruses. Can anyone invent a drug that would reduce the severity of a viral infection, where one might block the cycle.
Wednesday, December 1, 2010 at 12:00pm
Biology
What is the lumen of the human digestive system?
Tuesday, November 30, 2010 at 10:08pm
biology
how would hydrogen ions and hydroxide ions be attracted to intact water molecules
Tuesday, November 30, 2010 at 8:41pm
biology
what is cell history
Tuesday, November 30, 2010 at 4:08pm
biology
The brain stem is responsible for a. directing information in the brain and secreting hormones. b. regulating vital functions and memory. c. motor processing and regulating homeostatic functions. d. sensory processing and regulating balance. B?
Tuesday, November 30, 2010 at 10:08am
biology
When an impulse moves down the axon, a. sodium ions first rush out of the cell. b. a small part of the axon momentarily reverses its polarity. c. the resting potential of the cell does not change. d. potassium ions are pumped into the axon. B?
Tuesday, November 30, 2010 at 10:04am
biology
The function of neurons is to a. maintain a difference in electrical charge across the cell membrane. b. have specific ions cross the membrane through ion channels. c. maintain a membrane potential with charged ions on either side of the cell membrane. d. all of the above D?
Tuesday, November 30, 2010 at 9:46am
biology
The mouth, small intestine, and kidneys have functions that involve the a. digestion of food, synthesis of vitamins, and filtering of the blood. b. intake, digestion, absorption, and elimination of food and its wastes. c. secretion of bile, digestion of food, and reabsorption...
Tuesday, November 30, 2010 at 9:42am
Biology
A baby born without the ability to produce immune system cells may survive for several months, even when exposed to potentially deadly diseases. How?
Tuesday, November 30, 2010 at 1:55am
Biology
Can anyone help me find websites that can help me with Dehydration Synthesis/Hydrolysis? I haven't had any luck finding any. Thank you!
Friday, November 26, 2010 at 10:41pm
Biology
what really happens when a blood clot forms?
Friday, November 26, 2010 at 10:06pm
Molecular Biology
You are working in a lab that has recently discovered a new viral protein. Describe in detail how you could generate a polyclonal antibody preparation against this protein. Include a full description of production and purification. Describe in detail an experiment that could ...
Friday, November 26, 2010 at 5:57pm
Biology
Why doesn't blood clot in your blood?
Thursday, November 25, 2010 at 7:34pm
Biology
Fill in the correct answers: 1) Angiosperms is to flower as ______is to cone 2) Dicot is to two seed leaves as______ is to one seed leaf 3) Root is to fern as _____is to moss. Explain why mosses grow in moist areas. Thank you
Wednesday, November 24, 2010 at 11:34am
Biology
Explain why would there be more white blood cells found in a person's body who is infected by salmonella bacteria rather than a healthy person?
Wednesday, November 24, 2010 at 11:14am
Biology
What are the conditions that should be kept constant when we are growing seeds? ex. The place of plant and etc?
Wednesday, November 24, 2010 at 11:09am
Biology
What are the benefits of antibiotic for human being?
Wednesday, November 24, 2010 at 10:52am
Biology (URGENT PLEASE!)
This is a question of my last biology test: Name at least one technological device that would have not been invented without scientific knowledge: A.Radio B.Ruler C.Knife D.None of the above I answered D but got a cross for it. So can you please help me to solve what is the ...
Wednesday, November 24, 2010 at 10:50am
Biology
Are club mosses gymnosperms? ex. horse tail (ferns) What are club mosses used for? Thank you
Wednesday, November 24, 2010 at 10:46am
Biology
What are the importance of seedless plants?
Wednesday, November 24, 2010 at 10:44am
Biology HW HELP
hey i need help for some of these questions and on pedigree with the help of this story......This is the story of Grandma and Grandpa Flipnob, and their clan! They were married way back in 1933 and have been just like newlyweds ever since. From their union, 4 individuals were ...
Tuesday, November 23, 2010 at 9:41pm
Biology
The half -life of carbon-14 is 5,730 years.how much of an initial amount of this substance would remain after 17,190 years(3 Half-lifes
Tuesday, November 23, 2010 at 5:30pm
biology
at the end of meiosis 2 are the chromosomes replicated?
Monday, November 22, 2010 at 9:59pm
biology
What are some different types of mutant proteins?
Monday, November 22, 2010 at 3:55pm
biology
What are some different types of mutant proteins?
Monday, November 22, 2010 at 1:29pm
biology
What are some different types of mutant proteins?
Monday, November 22, 2010 at 1:29pm
Biology
What is the targeting pathway from translation until the protein reaches it's final functional destination for PFK and insulin? Choose from the following choices for each: a) golgi -> ER -> outside of cell b) ER -> golgi -> cytoplasm c) cytoplasm only d) ...
Saturday, November 20, 2010 at 2:57pm
science-biology
In lab, you use a special balloon that is permeable to water but not sucrose to make an "artificial cell". The balloon is filled with a solution of 20% sucrose and 80% water and is immersed in a beaker containing a solution of 40% sucrose and 60% water. Which of the ...
Friday, November 19, 2010 at 3:15pm
Biology
If a diploid organism has 4 chromosomes, how many pairs of homologous chromosomes would you expect to see during early prophase I?
Friday, November 19, 2010 at 4:23am
biology
Why can maintaining homeostasis be particularly challenging for multicellular organisms?
Thursday, November 18, 2010 at 7:42pm
biology
how does reverse osmosis work to purify bottled water?
Thursday, November 18, 2010 at 7:14pm
12th grade Biology
Most of the enzymes of the Calvin cycle also function in other metabolic pathways. This should not be a surprising finding, because ____.
Wednesday, November 17, 2010 at 1:48pm
biology
compare and contrast karyotype studies and pedigrees using a venn diagram
Tuesday, November 16, 2010 at 9:04pm
Biology
I need to make a food web based on the story "The Lorax" By Dr. Suess. It needs to include these characters: The Lorax The Once-Ler The Barbaloots The Humming Fish The Swamme Swans The Truffula Trees The Grickle Grass Can you help me?
Tuesday, November 16, 2010 at 6:45pm
Biology
4.0 g of ferrous ammmonium sulphate, FeSO4(NH4)2SO4 6H2O, is used. Since the oxalate is in excess, calculate the theoretical yield of the iron complex. Please help with this question. Thank you.
Tuesday, November 16, 2010 at 12:14am
biology
Characteristics that give birds the energy they need to fly long distances are a. strong breast muscles and wings. b. aerodynamic feathers and lightweight bones. c. divided ventricle and air sacs in lungs. d. endothermic metabolism and fused bones. C?
Monday, November 15, 2010 at 12:06pm
biology
Which of the following are three common characteristics of echinoderms? a. tube feet, circulatory system, body symmetry b. marine-dwellers, endoskeletons, water-vascular system c. bilateral symmetry, ossicles, respiratory system d. mouths, protosomes, body symmetry B?
Monday, November 15, 2010 at 11:33am
biology
Which of the following is NOT true about the digestive system of annelids? a. It contains setae to move the food through the anus. b. It is similar to an open tube. c. It passes nutrients through the intestinal wall to the bloodstream. d. It stores soil in the crop and grinds...
Monday, November 15, 2010 at 11:01am
biology
If a brown-eyed man marries a blue-eyed woman and they have ten children, all brown-eyed, can you be certain that the man is homozygous? If the eleventh child has blue eyes, what will that show you about the father’s genotype?
Monday, November 15, 2010 at 12:33am
biology nutrition
What plant did the greeks use as a digestive tonic when they had overeaten other foods?
Sunday, November 14, 2010 at 9:03pm
PSY/202
The issue that discusses whether development is more a function of biology or more a function of the environment is the ______________ controversy.
Sunday, November 14, 2010 at 8:24pm
biology
Other than transporting oxygen, what other important function does hemoglobin perform?
Sunday, November 14, 2010 at 11:24am
Biology
Hi can anyone clarify the following please Three unrecognisable bodies are found Genotype of bodies found at a house fire Locus Body 1 Body 2 Body 3 D3S1358 14,19 16,18 14,18 vWA 15,21 18,18 17,21 D16S539 11,11 12,13 11,12 D2S1338 18,19 18,24 18,23 D8S1179 13,14 14,15 12,14 ...
Saturday, November 13, 2010 at 6:37pm
2 biology terms
Hello, I'm a bit confused as to the difference between morphological and anatomical. Thanks
Saturday, November 13, 2010 at 2:35pm
Biology
The polymerase chain reaction (PCR) is useful for: A) making many copies of a small amount of DNA B) creating recombinant plasmids C) analyzing a person’s fingerprints D) cutting DNA into many small pieces E) allowing restriction enzymes to cut DNA at palindromes I can&#...
Friday, November 12, 2010 at 2:21pm
Biology
Which of the following is NOT a current goal of biotechnology? A) more effectively treating disease B) improving agriculturally important food plants C) efficiently producing biologically important molecules D) creating humans with higher intelligent levels E) generating ...
Friday, November 12, 2010 at 12:37pm
biology
What advantages did using the elodea stalk have over using its leaf or leaves?
Thursday, November 11, 2010 at 7:23pm
Biology.. Nutrition (college)
What root was widely traded were the seeds that Lewis and Clark concluded that they must have been indigenous to North America
Thursday, November 11, 2010 at 6:24pm
Biology
Where would you find Calcium Carbonate in a Safari environment?
Thursday, November 11, 2010 at 4:56pm
chemistry
A biology experiment requires the preparation of a water bath at 37.0°C (body temperature). The temperature of the cold tap water is 22.0°C, and the temperature of the hot tap water is 55.0°C. If a student starts with 70.0 g of cold water, what mass of hot water ...
Wednesday, November 10, 2010 at 11:49pm
biology
i would like to know if you could help me figure out the blanks of this question. The pH scale ranges from __ to __.Pure water is ___. An acid is ______ 7 and a base is __________ 7. If you could let me know that would be great thanks
Wednesday, November 10, 2010 at 4:21pm
biology (multiple choice!)
Evolutionary adaptations that help diverse animals exchange matter with the environment include a. gastrovascular activity, two-layered body, and torpedo shape. b. large volume, long tubular body, and wings. c. complex internal structures, small size, and large surface area. d...
Wednesday, November 10, 2010 at 12:48pm
Biology
a) How do CO2 and O2 levels in the blood regulate breathing movements? b) Explain how these mechanisms are a good example of homeostasis. Help me please :(
Tuesday, November 9, 2010 at 7:27pm
biology
wherever in the universe life exists, some of those life forms must be colored. why would a scientist make this statement.
Monday, November 8, 2010 at 11:30pm
Biology
The large intestine supports ___% of chemical digestion. A) 0 B) 75 C) 50
Monday, November 8, 2010 at 10:41pm
science - biology
Neurons: A. may be myelinated by microglia. B. secrete neurotransmitters from their nerve terminals in response to action potentials. C. are the most abundance cell-type in the brain D. often contain swellings at the nerve endings known as synaptic battons E. conduct ...
Monday, November 8, 2010 at 8:09pm
biology
The plasma membrane: Tick the box next to the ONE answer you believe is TRUE. A. can generate action potentials in excitable cells B. may burst in hypertonic extracellular solution C. can contain carbohydrates which confer ion permeability. D. is made up of a lipid core ...
Monday, November 8, 2010 at 8:08pm
Biology
Action potentials: Tick the box next to the ONE answer you believe is TRUE. A. compound action potentials increase in amplitude as the stimulus strength is increased. B. ONE action potential takes in the order of 1-2 seconds to be observed. C. generation decreases the Na+ ...
Monday, November 8, 2010 at 8:07pm
Biology
Describe the ecosystem’s population growth and regulation through community interactions.
Monday, November 8, 2010 at 8:00pm
Biology
During skeletal muscle contraction: Choose one answer. A. the A and I bands do not change length. B. cross bridges are formed between myosin and actin. C. minimal tension can be generated when the muscle is close to its normal resting length. D. the myofilaments change length...
Sunday, November 7, 2010 at 4:39pm
Math
At Small Town High there are 100 students, each of whom takes at least one of biology, chemistry, or physics. There are 50 students in biology, 60 in chemistry, and 70 in physics. If 24 students are enrolled in exactly two of these classes, how many students are in all three?
Sunday, November 7, 2010 at 3:31pm
Biology
The muscles of the heart are constructed out of: A) nucleotides B) complex carbohydrates C) cholesterol D) proteins Thank you.
Friday, November 5, 2010 at 1:01pm
Biology/help please
I am a being from another planet, please explain to me which is alive: a clock or a fish? Compare the two, similarities and differences.Can you help me answer this question ? thank you.
Thursday, November 4, 2010 at 9:19pm
biology
What happens to proteins dissolved in water when you heat it to 100 degrees celcius?
Thursday, November 4, 2010 at 8:44am
biology/poetry
can someone write me a acrostic poem on the word PHOTOSYNTHESIS, thank you
Wednesday, November 3, 2010 at 9:18pm
Biology
You are given the following protein sequence: NH2-Met-Trp-Trp-Met-Trp-Met-COOH What was the sequence of the mRNA? You must write your answer 5' to 3' direction, starting with the first nucleotide of the mRNA and ending with the last nucleotide of the mRNA. DO NOT ...
Tuesday, November 2, 2010 at 6:41pm
biology 101
• Human culture is changing faster than humans can evolve. What evidence of rapid environmental change do you see locally, nationally, and globally?
Tuesday, November 2, 2010 at 5:11pm
biology
what is a section of DNA that governs physical and behavioral traits called?
Tuesday, November 2, 2010 at 1:57pm
Biology
(1)How are the processes and end products of mitosis and meiosis similar? (2) How are the processes and end proucts of mitosis and meiosis different?
Monday, November 1, 2010 at 11:12pm
AP Biology
I have two questions: 1. Why are action potentials usually conducted in only one direction along an axon? A. The axon hillock has a higher membrane potential than the terminals of the axon. B. The brief refractory period prevents reopening of voltage-gated Na+ channels. C. ...
Monday, November 1, 2010 at 7:05pm
biology
Where would you be most likely to find a phenylalanine side chain?
Sunday, October 31, 2010 at 2:58pm
biology
i am doing a science project and needmeasurements for organs in the respiratory and excretory systems
Sunday, October 31, 2010 at 11:15am
Biology
Describe the features of the nasal cavity that moisten, clean, and warm the air as it passes through this cavity on its way to the lungs.
Friday, October 29, 2010 at 6:55pm
biology
The sex ratio(number of females vs. males) of which of the following species might be most affected by global warming?A.Humans b.bees c.birds d.Turtles
Friday, October 29, 2010 at 11:52am
Biology
When living cells break down food molecules, energy is A)stored as a phosphate group added to ADP. B)stored as ATP. C)released as heat. D)all of the above
Thursday, October 28, 2010 at 10:45pm
biology
3. Write a conclusion for the following question: What is the effect of temperature on the rate of photosynthesis?
Thursday, October 28, 2010 at 6:14pm
biology
Data Table: Rate of Photosynthesis Trial # Number of Bubbles/Minute 1 2 3 4 5 6 7 8 9 10 Trial 1 1 4 6 9 10 12 13 15 18 20 Trial 2 3 7 11 14 16 20 25 28 32 35 Making a Graph 2. In the space below, make a line graph showing the data from both trials
Thursday, October 28, 2010 at 6:08pm
biology
7. If the baking soda had not been added, would there still have been a source of carbon dioxide being introduced into the water? Explain.
Thursday, October 28, 2010 at 6:04pm
Biology
During the cell cycle, when does mitosis occur?
Thursday, October 28, 2010 at 10:48am
biology
what is a function of dna polymerase?
Thursday, October 28, 2010 at 1:23am
Biology
also located on the X chromosome is a gene that codes for deafness. This gene is recessive. a black female cat that is heterozygous for deafness (Dd) is crossed with a yellow cat that is not deaf What is the Punnet Square . and must use two letters on the x chromosome
Wednesday, October 27, 2010 at 8:55pm
Biology
Why do we perform aerobic respiration when we're resting and both aerobic and anaerobic respiration while we're running?
Wednesday, October 27, 2010 at 6:55pm
BIOLOGY ( please Help me)
In both lecture and lab, the significance of water (H2O), molecular oxygen (O2), and carbon dioxide (CO2) has been emphasized with regard to their energy content or participation in metabolic oxidation and reduction reactions. This lab has demonstrated that green leaf tissue ...
Wednesday, October 27, 2010 at 5:37pm
BIOLOGY( please help me)
Oxidized (blue) DPIP becomes colorless when it is reduced – that is, when it receives electrons. A diagram of the photosynthetic light reaction shows that water molecules are the source of these electrons. How is it that the DPIP was only able to receive reducing ...
Wednesday, October 27, 2010 at 5:36pm
biology
In both lecture and lab, the significance of water (H2O), molecular oxygen (O2), and carbon dioxide (CO2) has been emphasized with regard to their energy content or participation in metabolic oxidation and reduction reactions. This lab has demonstrated that green leaf tissue ...
Wednesday, October 27, 2010 at 4:46pm
College Biology
A 21-year old brother of a person with insulin-dependent diabetes mellitus experienced increased urination and thirst for 6 weeks, along with a 15 pound weight losss, despitre a normal appetite. Fearing that these symptoms meant he also had developed diabetes mellitus, he did ...
Wednesday, October 27, 2010 at 4:46pm
biology
In both lecture and lab, the significance of water (H2O), molecular oxygen (O2), and carbon dioxide (CO2) has been emphasized with regard to their energy content or participation in metabolic oxidation and reduction reactions. This lab has demonstrated that green leaf tissue ...
Wednesday, October 27, 2010 at 4:45pm
Biology
Oxidized (blue) DPIP becomes colorless when it is reduced – that is, when it receives electrons. A diagram of the photosynthetic light reaction shows that water molecules are the source of these electrons. How is it that the DPIP was only able to receive reducing ...
Wednesday, October 27, 2010 at 4:44pm
biology 101
what is the inheritance of sex-linked traits.
Wednesday, October 27, 2010 at 3:02pm
biology
The structures in bryophytes that penetrate the ground and act like roots are a. xylem b. phloem c. rhizomes d. rhizoids
Tuesday, October 26, 2010 at 11:04pm
Biology
It is said that high temperatures inactivate catechol oxidase. How is it then that some Archaebacteria live in the hot springs of Yellowstone Park at temperatures as high as 73%.
Tuesday, October 26, 2010 at 9:07pm
Biology
Hi, I am doing my lab assignment about Protein Analysis. Our job is to find the concentration of the casein protein in our original Unknown sample with the initial volume of 2ml. So after plotting the graph of the data given, we are supposed to find the equation for the line ...
Tuesday, October 26, 2010 at 8:04pm
Biology 101
Summarize the inheritance of sex-linked traits through meiosis and how it relates to genetics.
Tuesday, October 26, 2010 at 4:26pm
biology
which region produce the most fish A the Indian ocean B the Atlantic ocean C the pacific D the Atlantic an Indian ocean e none above
Tuesday, October 26, 2010 at 2:46pm
Biology
state one effect of an increasing level of TSH-releasing factor
Monday, October 25, 2010 at 7:36pm
biology
what is a close and permanent relationship between 2 different organisms ?
Monday, October 25, 2010 at 6:23pm
biology
What’s one advantage to being eukaryotic rather than prokaryotic? What’s one advantage to being prokaryotic rather than eukaryotic?
Monday, October 25, 2010 at 5:38pm
Biology 101
How are meiosis and genetics related?
Monday, October 25, 2010 at 5:19pm
Biology (multiple choice!)
What’s one advantage to being eukaryotic rather than prokaryotic? What’s one advantage to being prokaryotic rather than eukaryotic?
Monday, October 25, 2010 at 3:47pm
biology 101
Produce a family tree for at least three generations of your family or a friend’s family following these genetic traits: Eye color Hair color Dominant hand Height Widow’s peak Hitchicker’s thumb A family genetic disorder Can't seem to start could you please ...
Monday, October 25, 2010 at 3:28pm
Biology 101
Summarize the inheritance of sex-linked traits through meiosis and how it relates to genetics.
Monday, October 25, 2010 at 3:26pm
Biology (multiple choice!)
I'm studying for a test and can't find the answers for the following questions...please help! What clade of bacteria produce oxygen via photosynthesis? What is a synapomorphy for domain Bacteria? In a symbiotic relationship between organisms of significantly different ...
Monday, October 25, 2010 at 1:38pm
biology
How would you design an experiment to determine the osmolarity (amount of water) in an egg?
Sunday, October 24, 2010 at 9:22pm
biology
how is it that some Archaebacteria live in the hot springs of Yellowstone Park at temperatures as high as 73C
Sunday, October 24, 2010 at 9:21pm
Biology
In detail can someone please explain to me how cooking eggs makes them safe to eat in connection with enzymes Thank you I understand that enzymes are killed because of the heat as it is a factor in destroying the enzymes activity but how does this explain why its ...
Sunday, October 24, 2010 at 8:32pm
Biology
In detail can someone please explain to me how cooking eggs makes them safe to eat in connection with enzymes Thank you
Sunday, October 24, 2010 at 8:12pm
Biology
What is an adrenalin receptor? For a bio project at school i have to write the gene name, the # of amino acids, the # of peptides, the tissue signal, the role, the interactions, the active site/substrate, the disease/cures/inhibitors. i've googled adrenalin receptors and i...
Sunday, October 24, 2010 at 3:57pm
Biology
The modern antibiotic revolution began with the discovery of which antibiotic? sulfanamide quinoline tetracycline penicillin acyclovir Hopanoids found in sedimentary rock are an example of a biosignature. microfossil. stromatolite. banded iron formation. prebiotic metabolite. ...
Friday, October 22, 2010 at 8:25pm
Biology
What are the inter-relationships with these organelles and why? 1) Nucleus 2) Golgi apparatus 3) Lysosome 4) Cytoskeleton 5) Centriole By inter-relationships, I mean this: EXAMPLE: Chloroplast and mitochondria both involve energy transformations
Friday, October 22, 2010 at 1:36pm
biology
choose the correct statement concerning blood vessels. a. venules control blood flow through capillaries. b. arterioles drain blood from capillaries. c. veins have thinner walls, but more valves than arteries. d. nutrient exchange may occur along arterial vessels. e. all of ...
Friday, October 22, 2010 at 12:53pm
biology
why must the release of energy during the cellular process in which ATP is made from glucose take place in small steps?
Friday, October 22, 2010 at 12:43pm
Biology
Which process may not reduce the toxicity of a chemical in the body? Sequestration Chemical bond formation Elimination Blood flow to tissue/organ
Friday, October 22, 2010 at 2:27am
biology
in biology we are studying taxonomy. we are classifying our organisms by broadest to most specific: kingdom phylum class order family genus species how would i do this for a Siberian tiger?
Thursday, October 21, 2010 at 8:54pm
GR.12 BIOLOGY
i have to do an experiment on alcohol fermentation using yeast and sugar. i decided that i will test the differnt types of sugars to see how fast or how slow the reaction will happen. The three types is sucrose which is brown sugar ,there is lactose and fructose but can u ...
Thursday, October 21, 2010 at 3:54am
Biology
What does the net movement of solutes/solvents during osmosis and diffusion mean?
Wednesday, October 20, 2010 at 7:34pm
biology
an experiment with only two products used which are yest and sugar what are the outcomes? the procedure to conduct this experiment?
Wednesday, October 20, 2010 at 2:47pm
BIOLOGY GR.12
What are the differnt conditions for yest fermentation. i have to make a hypothesis and experment based on yeast fermentation. I WANT TO KNOW WHAT EFFECTS THE FERMENTATION. for example using a higher temp to put my yeast in will make the fermentation faster. WHAT OTHER FACTORS...
Wednesday, October 20, 2010 at 2:44pm
Biology/DNA
When doing a DNA extraction, what advantages does a TE buffer provide to DNA that water cannot?
Wednesday, October 20, 2010 at 1:15am
biology
Which of these was not derived from an ancestral alpha proteobacterium? mitochondrion kinetoplast chloroplast hydrogenosome mitosome
Tuesday, October 19, 2010 at 9:43pm
Biology
If you inherited an allele for blue eyes from your mother and an allele for brown eyes from your father, you are A) tetraploid B) homozygous C) haploid D) heterozygous I got D marked wrong, I'm so confused. Thanks.
Tuesday, October 19, 2010 at 3:35pm
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