Homework Help: Science: Biology

Recent Homework Questions About Biology

algebra
students in a biology class just took a final exam. a formula for predicting the average exam grade on a similar test t months later is. s(t)=78-15log(t+1) (a)find the students average score when they first took the final exam. (b)what would be the expected average score be on...
Tuesday, May 11, 2010 at 5:01pm

biology
how are sperm formation and egg formation similar?
Tuesday, May 11, 2010 at 4:02pm

Biology Research Paper
Please help! I've been working on this since forever... So, I've got a conclusion and everything for my research paper, I just have to make it longer. I have 3 pages, but not 3 full pages, so what more information can I add to make it longer? Any links will be of great...
Tuesday, May 11, 2010 at 11:54am

Biology
Can somebody find the pollinators for the following plants please, i am in way over my head and cant even find a website for one. if you dont want to help it is understandable but can you please contact me at (mw2.genius@gmail) with a suggestion for a website to find them. ...
Tuesday, May 11, 2010 at 2:14am

biology
a) Explain why the knee-jerk reflex still functions in a person with a severed spinal cord. b) Why is there no sensation of the stimulus?
Monday, May 10, 2010 at 11:14pm

biology
explain two attributes of enzymes in catalyzing chemical reactions and in metabolic pathways.
Sunday, May 9, 2010 at 6:22pm

Biology
A mutation has occurred in one chromosome of a spermatogonium. This mutation will show up in how many of the gametes produced from this cell? Choices: A. None B. Two C. All Four D. Cannot be determined I believe it is 2....If the mutation occurs in the spermatogonium it is ...
Sunday, May 9, 2010 at 2:32pm

biology
how would an enzyme that destroys cytokines affect both the cell-mediated and humoral immune responses?
Sunday, May 9, 2010 at 12:43pm

Biology
what is an example of gross primary productivity of community
Saturday, May 8, 2010 at 9:46am

Biology
what is an example of biodiversity
Saturday, May 8, 2010 at 12:20am

Biology
2. How important are test-crosses to modern day science (breeding / cultivation)?
Friday, May 7, 2010 at 12:30pm

Biology
1. define a test-cross.
Friday, May 7, 2010 at 11:50am

biology
A group of specialized cells that transport fluids and nutrients is called a. a multicellular autotroph b. a methanogen c. an aggregation d. vascular tissue A?
Friday, May 7, 2010 at 10:27am

biology
Which of the following are NOT used to classify kingdoms of organisms? a. complexity of the organism b. invertebrate or vertebrate c. method of obtaining nutrition d. type of cell that makes up the organism D?
Friday, May 7, 2010 at 10:23am

Biology Research Paper
I need help writing a conclusion for my research paper..please help! I need to finish this ASAP. Thanks We find it mixed in our food on the shelves in the supermarket and growing in a plot down the lane. It is variously known as genetic engineering, which is a technology in ...
Thursday, May 6, 2010 at 2:32pm

Biology
For what biological reason do farmers object to picking apple blossoms during the apple blossom season?
Wednesday, May 5, 2010 at 8:55pm

Biology
Explain why a heavy rainfall on a fruit orchard in the spring might result in a poor fruit yeild in the fall.
Wednesday, May 5, 2010 at 8:55pm

Biology
A friend tells you that because he has just recovered from a cold, he now cannot get the flu. Is your friend right? Explain your answer.
Wednesday, May 5, 2010 at 10:16am

biology
Explain why a person should believe that all life that currently exists on planet earth evolved from a simple, common ancestor through the process of mutation, natural selection, sexual selection and genetic drift.
Tuesday, May 4, 2010 at 8:26pm

biology
explain and illustrate how the long-term survival of a species depends on resources that may be limited from time to time
Tuesday, May 4, 2010 at 6:57pm

Biology
In many cases, not all of Koch's postulates can be applied to determine the cause of a human disease. Explain why.
Tuesday, May 4, 2010 at 3:18pm

Chicago Manual (CM) and Council of Science Editors
Question 1 5 points Save Which of the following fields uses Chicago Manual of Style (CM) documentation? psychology history education biology Question 2 What information goes in the parentheses when using CM style numbered notes? the publishing information the article title the...
Sunday, May 2, 2010 at 3:31pm

biology
Can someone please help me with this question? Thanks! What organic molecules make up the structure that surrounds the DNA molecule?
Sunday, May 2, 2010 at 11:26am

Biology
Start by observing the living species around you. Ever wonder why a pollinator is attracted to a particular flower, or what would happen to predator species if a particular prey species is eliminated? If you were a scientist you could do an experiment to answer your question. ...
Sunday, May 2, 2010 at 8:14am

Biology
What is an ecological property? Would the Belize Barrier Reef Reserve System be an ecological property? Or would the Los Katios National Park be a better option?
Friday, April 30, 2010 at 10:52pm

Biology
What is the target organs for Luteinizing Hormone and the Follicle Stimulating Hormone?
Thursday, April 29, 2010 at 12:48pm

Biology
Name 3 structures that help focus the light rays entering the eye: lens iris cornea Can someone tell me if this is right, if not a site I can check, please. Thanks
Wednesday, April 28, 2010 at 7:35pm

Biology
Hi there, I have to do a paper on Luteinizing hormone and Follicle Stimulation Hormone. Could you direct me to newspapers or journal articles discussing both hormones individually and it's relation to homeostasis. Also, what is the chemical nature of the L.H. and F.S.H. (...
Wednesday, April 28, 2010 at 7:10pm

Biology
What kinds of cells make it difficult to tear fern leaves from a plant? thanks:)
Wednesday, April 28, 2010 at 5:24pm

Biology
For what enzymes is iron especially important? - (Talking about photosynthesis and phytoplankton)
Wednesday, April 28, 2010 at 12:59am

Biology Research Paper
Is this alright as my 'hooking' beginning? We find it mixed in our food on the shelves in the supermarket, we find it growing in a plot down the lane, test field release sites with genetically engineered rape seed, sugar beet, wheat, potato, strawberries and more. It ...
Tuesday, April 27, 2010 at 7:11pm

Biology Research Paper
I need help with the beginning of my research paper; I have to make the beginning effectively hook the readers' attention but I'm not sure how to do that..please help. Genetic engineering is a technology in which the genome of a living cell is modified for medical or ...
Tuesday, April 27, 2010 at 6:17pm

Biology Research Paper
I have to write a research paper on genetic engineering. This is what I have so far, but it's too short. My paper has to be at least 3 pages long (double spaced) and this makes only one and a half pages. Please give me some links from which I can add more information to my...
Tuesday, April 27, 2010 at 1:08pm

biology
How many Calories are found in a food sample if burned in a calorimeter is raises the temperature of 1000 grams of water 58 degrees?
Tuesday, April 27, 2010 at 10:45am

Biology
when there is a deleterious (harmful) mutation in the gene coding for the protein 6-phosphofructokinase, muscle type
Sunday, April 25, 2010 at 8:20pm

Biology
1)If you wish to carry out a cladistic analysis of a group of species, then there are several types of information that you might find useful. Which one of the following choices describes a type of information that would be least useful in a cladistic analysis? A) An ...
Sunday, April 25, 2010 at 6:53pm

Science (Biology)
1) In using cladistical analysis to assemble a hypothetical tree of a group of species, there are several things that must first be known. Of the items listed below, which one states an item that is not essential in order to use cladistics? A) Have found an outgroup that has ...
Sunday, April 25, 2010 at 6:49pm

Biology Gr. 11
Indicate how a female could inherit complete red-green colour blindness
Saturday, April 24, 2010 at 10:12pm

Science/ Biology 8
There is a question in my science textbook and no where in the textbook can I find the answer- neither can I find the answer on the internet. The question is: "If you shine a flashlight in a dark room and sprinkle talcum powder in front of the flashlight, what property of...
Saturday, April 24, 2010 at 4:44pm

10th grade Biology
Why is diffusion insufficient to meet the oxygen requirement of multicellulars like us?
Saturday, April 24, 2010 at 5:56am

Biology
How does temperature affect the solubility of oxygen in water?
Friday, April 23, 2010 at 5:21pm

AP Biology
what evidence supports the hypothesis that mitochondria preceded plastids in the evolution of eukaryotic cells?
Friday, April 23, 2010 at 12:20am

Biology
Suppose you have monohybrid pea plants in your garden and find that they produce round seeds to wrinkled seeds in the ratio of 3:1. If the alleles are designated R and r, respectively, what are the probable genotypes of the wrinkled seeds produced by your plants?
Thursday, April 22, 2010 at 1:02pm

biology
How is the earthworm’s digestive system adapted for extracting relatively small amounts of food from large amounts of ingested soil?
Thursday, April 22, 2010 at 10:20am

Biology
Please give an example of natural selection that does not include a predator/prey relationship.
Wednesday, April 21, 2010 at 6:41pm

biology
Carbon monoxide blocks the transport of what by hemoglobin in the blood?
Tuesday, April 20, 2010 at 11:41pm

biology
what is the process by which organisms maintain a relatively stable internal environment?
Tuesday, April 20, 2010 at 9:47pm

biology
How can the level of pain you feel very if a stimulus causes an all-or-none response?
Tuesday, April 20, 2010 at 8:45pm

biology
Rank these from largest to smallest, bacteria, organelle, cell, atom, virus, protein, molecule
Tuesday, April 20, 2010 at 10:17am

biology
Comparisons of amino acid sequences from different organisms often shed light on the evolutionary divergence of related species. Would you expect all of the proteins of a given set of living species to show the same degree of divergence?
Sunday, April 18, 2010 at 9:00pm

biology
How has the origination of macromolecules contributed to organismal development?
Sunday, April 18, 2010 at 8:56pm

Biology
Explain how the potential energy of carbon and its ability to tetramerize lead to the development of macromolecules
Sunday, April 18, 2010 at 8:55pm

Biology
Elaborate on the role that isomers and functional groups could have lead to the creation of life. Cite one example using a functional group of your choosing
Sunday, April 18, 2010 at 8:54pm

biology
When TSH reaches a very high level, What does it do? A- causes TRH to be released B- causes thyroxine to be released C- turns off TRH production D- turns off thyroxine production E- turns off TSH production
Sunday, April 18, 2010 at 5:32pm

biology
which of the following hormones helps the immune system fight off infections? A- PTH B- thymosine C- aldosterone D- GHRH E- GnRH
Sunday, April 18, 2010 at 5:29pm

biology
What glands are responsible for maintaining thyroxine levels?
Sunday, April 18, 2010 at 5:23pm

biology
Who are the messengers of the endocrine system? A- neurotransmiters B- hormones C- sweat D- glucose E- impulses
Sunday, April 18, 2010 at 5:12pm

biology
The endocrine system.. A- affects only the reproductive system B- releases substances into the bloodstream C- competes with the nervous system to send signals D- fights with the antibodies preoduced by the immune system
Sunday, April 18, 2010 at 5:07pm

biology
The regulation of temperature in the body is a good example of a... A-hormone-receptor complex B-prostaqglandin C-feedback mechanism D-exocrine gland
Sunday, April 18, 2010 at 5:02pm

biology
Can someone please list a few ideas to conduct an experiment on how the surface area affects the reaction rate. Hydrochloric acid can be tested as a catalyst with what sort of objects?
Sunday, April 18, 2010 at 12:44am

Biology
I'm stuck on these 2 questions..please help in any way! Thanks 2. How can genetic altering benefit the society of today and future societies? 6. What other areas of life could this manipulation of genes cause? Links would be of great help, or suggestions. Thanks again -MC
Friday, April 16, 2010 at 2:33pm

Biology
Have I got the correct answers for all these questions? 1. Explain what genetic engineering is and how it can be applied to everyday life. Ans- Genetic engineering is a technology in which the genome of a living cell is modified for medical or industrial use. It’s used in...
Friday, April 16, 2010 at 1:58pm

biology
where is sound perceived?
Thursday, April 15, 2010 at 8:10pm

biology
why is the fovea important?
Thursday, April 15, 2010 at 7:27pm

biology
Internal membranes play important roles in protein production and processing except they do NOT anchor ribosomes in place. transport substances to different areas. contain the hereditary information for the protein. modify proteins to go into vesicles.
Thursday, April 15, 2010 at 11:41am

biology
Which of the following is true about the relationship between energy and chemical reactions? Activation energy is required for a chemical reaction to occur. Activitation energy is not necessary in a chemical reaction which releases energy. Chemical bonds are always broken by ...
Thursday, April 15, 2010 at 11:40am

biology
Carbohydrates and lipids have many carbon-hydrogen bonds; therefore, they both store energy in these bonds. are easily dissolved in water. dissolve only in vinegar. exist only in cells of plants.
Thursday, April 15, 2010 at 11:39am

biology
The synthesis (S) phase is characterized by DNA replication. cell division. replication of mitochondria and other organelles. the division of cytoplasm.
Thursday, April 15, 2010 at 11:07am

biology
The structure of chromosomes is best explained as DNA broken apart into separate genes. extended to form very long, thin molecules. wrapped tightly around associated proteins. coiled up into a ball.
Thursday, April 15, 2010 at 11:02am

Ag. Biology
I'm stuck on 10 questions on my homework, I'll post them separate. 25. Describe the role of an operon in a prokaryotic cell, and give an example of how an operon works.
Wednesday, April 14, 2010 at 11:51pm

biology
Can someone please help me with the following question. Thanks! Skin color is not directly tied to race. All humans carry the same genes. Yet why do some races seem to have darker (or lighter) skin tones than others?
Wednesday, April 14, 2010 at 11:44pm

biology
the question is what % of the offspring will be round ? anf the letters are (Rr x rr) and then a square
Wednesday, April 14, 2010 at 9:15pm

Microbiology- Biology 205
Can someone please help me with this question.... When you blow bubbles into a glass of water, the following reactions take place: H2O + CO2 --a--> H2CO3 --b--> H+ + HCO3- 1. What type of reaction is a? 2. What does reaction b tell you about the type of molecule H2CO3 is...
Wednesday, April 14, 2010 at 11:27am

Biology
Menge and colleagues performed experiments in which they exposed some populations of mussels to sea stars and excluded sea stars from other mussel populations. Suppose that the sea star population consists of 20 individuals and the two populations of mussels are of the same ...
Tuesday, April 13, 2010 at 10:24pm

Biology
One family of mammals includes true horses (Equus), zebras (Hippotrigris and Dolichohippus), and donkeys and asses (Asinus). Zebroids are hybrid offspring of wild zebras and domesticated horses that were confined to the same pasture. The unnatural confinement breached the ...
Tuesday, April 13, 2010 at 8:23pm

biology
what could be an explanation for why natural selection might favor carnivores whose muscle cells use lactic acid fermentation as well as cellular respiration?
Tuesday, April 13, 2010 at 6:30pm

biology
1. Some photosynthetic bacteria are able to harvest 900-nanometer light (4 points). A. What is the energy in kilocalories of a mole (an einstein) of 900-nanometer light? B. What is the minimum number of 900 nanometer photons needed to form one molecule of ATP from ADP and ...
Tuesday, April 13, 2010 at 12:05pm

10th grade biology
what are two distinguishing characteristics of prokaryotes?
Monday, April 12, 2010 at 8:12pm

biology
Which of the following must occur for a plant or animal to grow and develop normally?
Monday, April 12, 2010 at 5:35pm

English
Hello! I will type 2 exercises from the lesson I am teaching on Wednesday-english as a foreign language - 8th graders ( it will be graded) I need you to help me with some ideas. It says: LEAD- IN: A Here is a list of some natural sciences: BIOLOGY CHEMISTRY PHYSICS BOTANY ...
Monday, April 12, 2010 at 11:13am

Biology
We cut a slice of the target gene from the gel which ran electrophoresis. And then purified the gene from the gel by using Gel-M column, WN buffer and WS buffer. After these steps, we ran another electrophoresis of the purified gene and there was no band showed on the picture...
Sunday, April 11, 2010 at 9:05am

Biology
What are the resulting genotypes of angiosperm's double fertilization?
Saturday, April 10, 2010 at 6:01pm

biology
what would the genotype and phenotype ratios be for a mother who carry's hemophilia and a father who is normals child?
Saturday, April 10, 2010 at 4:11pm

Biology
What are the resulting genotypes of angiosperm's double fertilization?
Saturday, April 10, 2010 at 1:40pm

Biology
Need help answering these questions-- How can genetic engineering be applied to everyday life? How can genetic altering benefit the society of today and future societies? What areas of life could this manipulation of genes cause? Thanks -MC
Saturday, April 10, 2010 at 11:07am

biology
What is the correct definition of a princible? a)A statement of a relationship between two or more abstractions. b)A simplified, symbolic representation of a theory or conceptual scheme. c)An abstract generalization that presents a systematic explanation about the ...
Friday, April 9, 2010 at 5:27pm

biology
Which of the following statements about sexual and asexual reproduction is FALSE? a. Genetic diversity occurs in sexual reproduction. b. Asexually reproducing organisms can repair their own DNA. c. There are no special reproductive cells in asexual reproduction. d. A ...
Friday, April 9, 2010 at 11:45am

biology
When Darwin published his theory of evolution, he included all of the following ideas EXCEPT the idea that a. species changed slowly over time. b. some organisms become less suited to their environment then others. c. evolution occurs in spurts after major environmental ...
Friday, April 9, 2010 at 11:28am

Biology Research Paper
I need to make my conclusion bigger; how can I do that? What more information can I add in it? Thanks Burning of fossil fuels is considered to be the largest contributing factor to the release of greenhouse gases in the atmosphere. There are many types of harmful outcomes ...
Thursday, April 8, 2010 at 10:01pm

Biology
I feel stupid, but seriously, I used to be better at Science than Math. Now it's the other way around. Bacterial DNA is (a) a closed loop (b) encased in a capsule (c) linear (d) found in the nucleus. The glycocalyx helps bacteria (a) survive unfavorable environmental ...
Wednesday, April 7, 2010 at 10:08pm

Biology
Bacteria produce yogurt from milk by (a) conjugation (b) aerobic respiration (c) fermentation (d) fixing nitrogen I'm missing school for a week so I need help with a few Biology problems.
Wednesday, April 7, 2010 at 10:01pm

Biology Research Paper--Urgent
How do I make parenthetical references of a website throughout my research paper? Thanks -MC
Wednesday, April 7, 2010 at 12:58pm

Biology - Hormones
What 3 steroid hormones and involved in controlling reproductive function in both non pregnant women and in men
Tuesday, April 6, 2010 at 8:46am

biology
Two students conducted experiments to study the rate of photosynthesis in Lycopersicon esculentum L. Experiment 1 The students designed an apparatus that measures the rate of water absorption. Experiment 2 The students used a setup that measures oxygen uptake from the ...
Monday, April 5, 2010 at 9:41pm

biology
What environmental conditions would favor sexual reproduction? What environmental conditions would favor asexual reproduction? Organism - sexual reproduction - gonads asexual reproduction - honeybees - Is pillbugs an asexually organism or is a sexually organism? I think its ...
Monday, April 5, 2010 at 9:24pm

Biology---Urgent!
s this the correct way to cite a source using parenthetical documentation in my research paper? After millions of years the deposits end up in rock and sediment where oil is trapped in small places. Natural gas is a gaseous fossil fuel that is versatile and abundant. Like oil...
Monday, April 5, 2010 at 3:33pm

Biology Research Paper
Is this the correct way to cite a source using parenthetical documentation in my research paper? Coal is a solid fossil fuel formed over millions of years by decay of land vegetation. When layers are compacted and heated over time, deposits turn into coal. Oil is a liquid ...
Monday, April 5, 2010 at 12:23pm

Biology
I know that miller syndrome is autosomal recessive so would i use a karyotype or pedegree to represent that because I have to: Include a pedegree of at least 3 generations to demonstrate the inheritance pattern. Be sure to label and explain the chart accurately so that someone...
Monday, April 5, 2010 at 12:06pm

Biology
What are some treat ments for Miller Syndrome? If you found a website that would be great. I already know of NINDS and FACES websites. thanks:)
Monday, April 5, 2010 at 10:52am

Biology - Hormones
Name 3 steroid hormones involved in controlling the reproductive function of both non pregnant women and men ty
Monday, April 5, 2010 at 9:08am

biology
What happen if ECB became resistant to Bt?
Monday, April 5, 2010 at 2:33am

biology
need a list describing at least five similarities and three differences between plant and animal cells. In addition i need five internal structures of plant or animal cells and describe their functions in my own words.
Sunday, April 4, 2010 at 12:32am

biology
I can't find anything explainng how it affects it. Do you know?
Saturday, April 3, 2010 at 10:01pm

biology
how does Eco-Tourism affect the marine biome?
Saturday, April 3, 2010 at 9:51pm

biology
what does "Eco-Tourism: 5 statements:5 points of interest in your biome." mean? what is it asking?
Saturday, April 3, 2010 at 9:42pm

biology
what impacts do humans have on the marine biome?
Saturday, April 3, 2010 at 9:06pm

biology
In mitosis, what is the size of a daughter cell relative to the size of the parent cell? If an onion cell has 10 chromosomes, how many double chromosomes does an onion cell have at the start of metaphase? Thanks!
Friday, April 2, 2010 at 9:23pm

biology
how do some cells become brain cells and others become skin cells when the DNA in all of the cells is exactly the same
Thursday, April 1, 2010 at 10:17pm

Biology
What is the habitat and # of living species of: 1.single celled protozoa 2.joint legged arthopods 3.back bone chordates
Thursday, April 1, 2010 at 5:58pm

Biology
4. Does the following set of coordinations make a horizontal, vertical, or diagonal line when connected with a straight line? (4, 5) (2, 5) 5. Positive slope indicates a _____ process. a. steady b. gaining c. losing d. slow A? 6. The m in the equation y= mx + b represents the ...
Thursday, April 1, 2010 at 5:43pm

Biology
What are the treatments for Miller Syndrome. A website would be nice:) Thanks!
Wednesday, March 31, 2010 at 9:12pm

BIO100
Post a 200- to 300-word response to the following: In your own words, summarize each of the major theories of biology. Choose one theory and provide an example of how this theory relates to the news today. Use at least one outside reference in addition to your text. Use APA ...
Wednesday, March 31, 2010 at 3:05pm

biology
what is nucleotide?
Tuesday, March 30, 2010 at 3:08pm

Biology
"Suggest two things a large cell might do to increase its surface area:volume ratio". The obvious method would be to divide into many smaller cells...but what else can the cell do? I also thought that it could just simply grow larger, but the question specifies that ...
Tuesday, March 30, 2010 at 12:28am

Biology
I need help making parenthetical citations within my research paper, crediting sources of information/and or quotation of sources in proper MLA format..can I get some links to help me? Thanks -MC
Monday, March 29, 2010 at 9:37pm

Biology
What is the significance of measuring population density?
Monday, March 29, 2010 at 6:12pm

English
Can you please check the grammar in the following sentences, please? Thank you very much in advance. 1)If I hadn’t missed it, I would have arrived on time at the theatre and I could have seen Murphy’s performance. 2) I don’t feel well and I’d prefer to go ...
Monday, March 29, 2010 at 5:53pm

biology
a scientist finds no evidence that species in a community are competing and concludes that competition never played a role in the development of this community. is this conclusion valid?
Monday, March 29, 2010 at 4:38pm

biology
in a relationship that is an example of commensalism, would the species that is neither helped nor harmed evolve in response to the other species?
Monday, March 29, 2010 at 4:35pm

biology
in japan, native honeybees have evolved an effective defense strategy against giant Japanese hornets. imported European honeybees, however, are unable to defend themselves. explain this in terms of coevolution?
Monday, March 29, 2010 at 4:33pm

biology
in response to shortened day length and cool temperatures, many trees begin a period of senescence when the breakdown of chlorophyll exceeds chlorophyll production. the leaves of these trees change to yellow and orange. using your knowledge of photosynthetic pigments explain ...
Monday, March 29, 2010 at 2:44pm

biology
one difference3 between a gastrovascular cavity and a one-way digestive system is the presence or absence of
Monday, March 29, 2010 at 12:26pm

biology
Replication of the E. coli chromosome takes 40 to 45 minutes, but the organism has a generation time of 26 minutes. How does the cell have time to make complete chromosomes for each daughter cell? For each granddaughter cell? my reponse was that the cells don't fully ...
Monday, March 29, 2010 at 2:18am

Biology
In many tissues, one of the earliest responses to cellular injury is the rapid increase in the levels of the enzymes involved in the pentose phosphate pathway. Ten days after an injury, heart tissue has levels of glucose-6-phosphate dehydrogenase and 6-phosphogluconate ...
Sunday, March 28, 2010 at 10:30pm

Biology / Biochemistry
How will the conformation of an Enzyme (a protease) be affected when the amino acid residue is substituted with glutamate instead of glutamine?
Sunday, March 28, 2010 at 12:48pm

Biology
True or False?: The random segregation of chromosomes during meiosis explains Mendel's observation that genes for different traits are inherited independently of each other.
Friday, March 26, 2010 at 7:15pm

math
Sheryl correctly answered 85% of the questions on her 200-question biology final. Fernando scored a 90% on his 180-question chemistry final. (a) Who answered more questions correctly? ____________________ (b) Who answered more questions incorrectly? ___________________
Friday, March 26, 2010 at 1:47am

Biology
What is the process of cellular respiration and why is it so important? Thank you.
Thursday, March 25, 2010 at 1:07am

Biology
What is the process of cellular respiration and why is it so important? Thank you.
Thursday, March 25, 2010 at 1:06am

biology
Insects that live on land have a coating of wax on the outer surface of their body. What function might this wax serve for these animals?
Thursday, March 25, 2010 at 1:03am

biology
What are the storage and quick energy forms of carbohydrates found in animals, and how are these forms structurally related to each other?
Thursday, March 25, 2010 at 1:00am

Biology
Hi there, I am doing a genetic debate on the topic "Xenotransplantation should receive all the funding that stem cell reasearch now receives." I am against this idea and I must take on the role of a patient who has contracted a disease after an xenotransplantion. ...
Wednesday, March 24, 2010 at 6:14pm

Biology
34. The heart is divided into two major sections with two chambers in each section. Tell an easy way to remember which section carries oxygenated blood and deoxygenated blood, the chamber the blood enters first, and the second chamber the blood exits from. I think the chamber ...
Wednesday, March 24, 2010 at 4:54pm

Biology and Graphing (Stats)
i need to make a graph on excel.. my data involve putting goldfish (from the same tank and same type) into 3 different environments : acidic, neutral (control), and basic. What kind of graph should I use? just a line graph? but then what should my variables look like? the 3 ...
Wednesday, March 24, 2010 at 1:59am

AP Biology
Describe the production and processing of a protein that will be exported from a eukaryotic cell. Begin with the separation of the messenger RNA from the DNA template and end with the release of the protein at the plasma membrane. -in essay format not points please-
Wednesday, March 24, 2010 at 1:13am

biology
How could a substance that stops the sythesis of mRNA cause the liver to stop functioning(the death of liver cells)?
Tuesday, March 23, 2010 at 11:02pm

Biology
What are 3 ways that guppy fish interect (symbiosis,mutualism etc.) please provide a website:) thanks:)
Tuesday, March 23, 2010 at 6:31pm

Biology
Respond to this question: "If a plant doesn't have enough water to openits guard cells, how would this affect its rate of transpiration?" In your answer, discuss the following: - the guard cell's role in transpiration - what effect this would have on the ...
Tuesday, March 23, 2010 at 11:35am

Biology
There are 10 Characteristics of a living organism 1. Composed of one or more cells 2. evolve into a new type of organism 3. carries out and controls a variety of Chemical reaction 4. produces offspring resembling itself. What are 6 more.
Monday, March 22, 2010 at 11:14pm

Biology
32. To function properly, a neuron must maintain a a. membrane potential b. neurotransmitter c. negative charge on the inside d. positive charge on the inside I'm stuck between C and D... 34. Hormones are essential to maintaining homeostasis mainly because a. they catalyze...
Monday, March 22, 2010 at 1:19pm

Biology
ATP provides cells with energy needed for?
Monday, March 22, 2010 at 1:06pm

AP Biology
discuss the characteristics that make up mammalian genomes larger than prokaryotic genomes
Sunday, March 21, 2010 at 10:55pm

Biology
Match the terms with the correct description: a. regulates supply of gases from ATP production b. provides negative feedback signals c. protects body against foreign dangers d. "rapid transit" for liquids and gases e. primary "regulator" of sensory ...
Sunday, March 21, 2010 at 10:04pm

Biology
During the follicular stage of the menstrual cycle, both FSH and estrogen are high, but aren't estrogen and FSH on a negative feedback loop? Is it just because FSH is not directly involved in the increase of estrogen (it is the follicle that increases estrogen) that both ...
Sunday, March 21, 2010 at 5:20pm

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