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September 30, 2014

Homework Help: Science: Biology

Recent Homework Questions About Biology

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Biology
6. Describe and explain what would happen to a cell containing 100mM NaCl, 150 mM glucose, and 100 mM protein if placed into: a) distilled water? (describe the volume change if the cell were permeable to water only). b) a solution of 100mM NaCl, IF the cell were permeable to ...
Monday, February 4, 2013 at 12:24am

Biology...
1. References are made by the anatomist to the front,back,head and tail of the body. What anatomical reference terms are used to describe each of these directions? My answer: anterior, posterior, I am not sure with head and tail Is it superior and inferior?? 2. A person lying ...
Sunday, February 3, 2013 at 7:36pm

biology
How to make structure of DNA ladder like
Sunday, February 3, 2013 at 1:41pm

biology help plz?????????????????
product of The oxidative phosphorylation / electron transport is ? in stage of glucose oxidation a)pyruvate b)oxygen c)water d)NAD e)ATP f)NAD.2H g)carbon dioxide h)ADP CHOSE TWO ANSWER FROM THE FOLLOWING LIST product of Glycolysis is? a)pyruvate b)oxygen c)water d)NAD e)ATP f...
Saturday, February 2, 2013 at 9:51am

biology help plz?????????????????
the mRNA squence below is shown along with the polypeptide which would be produced when it is translated .what polypeptide would be produced if the fifth base in the mRNA sequence shown had been changed to A as result of a mutation in the DNA from which the mRNA wa transcribed...
Saturday, February 2, 2013 at 9:26am

biology
What is the scientific reason to the larger population of females than males in countries in relation to chromosomes?
Saturday, February 2, 2013 at 3:32am

biology
List any five anatomical differences between monocot root and dicot root.
Friday, February 1, 2013 at 2:23am

biology
property of muscle in which the strength of its contraction can vary from weak to strong
Thursday, January 31, 2013 at 2:24am

biology
nerve fiber control over muscle or gland effector activity
Thursday, January 31, 2013 at 1:58am

Biology
What is a cross between plants that involves one characteristic called
Wednesday, January 30, 2013 at 7:55pm

biology
Gastrulation geometrically separates the future ectoderm, from what?
Tuesday, January 29, 2013 at 10:13pm

biology college
which leukocyte is predominant in the blodd smear?explain by comparing it with other leukocytes and red blood cells in the blood smea
Tuesday, January 29, 2013 at 8:56am

Biology
In a population of jaguars, a gene with two alleles encodes the fur color. Allele B causes melanism (dark fur) and is dominant over allele b, which results in light colored fur. Suppose that there is a migration event, producing a population with 60% BB, 20% Bb and 20% bb ...
Monday, January 28, 2013 at 2:43pm

Biology
In a lab experiment, we experimented with 1% glucose solution and Sorenson's solution to determine pH levels and whatnot; the other part of the lab was to determine which one, if either, was a buffering solution. According to the notes my instructor gave us, a buffers are ...
Monday, January 28, 2013 at 1:10pm

biology
1. discuss the mechanisms that organisms undergo to accomplish morphogenesis 2. Describe the contributions of drosophila and nematodes in advancing understandings of development
Sunday, January 27, 2013 at 6:33pm

Biology
How does diabetes affect the brain?
Sunday, January 27, 2013 at 1:27pm

Biology-reaction time
How can someone improve their reaction time? also what type of athlete would have a above average reaction time? Please explain why?
Sunday, January 27, 2013 at 1:14am

BIOLOGY
What is the majority of the mass of the heart composed of? a. Endocardium b. Myocardium c. Pericardium d. Endothelium
Saturday, January 26, 2013 at 8:05pm

Biology
Okay so if i have two enzyme catalyzed reactions: 1) delta g of the ES = -22kJ/mol 2) delta g od the ES = 42 kJ/mol Is this first reaction going to have a higher reaction rate because the of the negative delta g, because doesnt a negative delta g give you a spontaneous ...
Saturday, January 26, 2013 at 7:00pm

Biochemistry, Biology, Chemistry
An enzyme works on two substrates, S1 and S2. Its Km for S1 is 100mM and its Km for S2 is 10mM. Based on this information, answer the following questions: 1. For a given [E] will it have a higher Vmax for S1 or S2? Explain your answer 2. Is S1 or S2 a better substrate for the ...
Saturday, January 26, 2013 at 6:53pm

biology
1. discuss the mechanisms that organisms undergo to accomplish morphogenesis 2. Describe the contributions of drosophila and nematodes in advancing understandings of development
Saturday, January 26, 2013 at 2:36pm

biology
Mode of formation of nutrition(two pages)
Thursday, January 24, 2013 at 4:33am

Biology
What piece of evidence would actually allow us to measure the actual rate at which continental drift is occurring?
Wednesday, January 23, 2013 at 9:53pm

biology
what is theoffspring of a yellow seed and a green seeds genotype and phenotype?
Wednesday, January 23, 2013 at 8:29pm

biology
why would you like to watch wildlife on television or visit the zoo?
Tuesday, January 22, 2013 at 11:40pm

Biology
How do scientists calibrate a molecular clock? A)They determine the number of mutations accumulated in a gene of a species of known age. B)They compare the ticking of the molecular clock with that of the atomic clock. C)They use the clock that ticks at the appropriate rate for...
Tuesday, January 22, 2013 at 12:21pm

Biology
What is a molecular clock? A)a tool scientists use to date fossils B)a tool scientists use to determine how many mutations a species accumulates over time C)a tool scientists use to determine how long two species have been evolving independently D)a tool scientists use to ...
Tuesday, January 22, 2013 at 11:08am

biology
how can u investigate sugars or starch in a banana
Monday, January 21, 2013 at 11:23am

biology
Show that germinatingseeds produce heat energy.
Sunday, January 20, 2013 at 12:53pm

Environmental Biology
Identify two different types of businesses or corporations (be as specific as possible) that receive subsidies, through which it could be argued that environmental damage is a result. Briefly describe the environmental damage for each.
Saturday, January 19, 2013 at 12:21pm

Biology
A blue eyed man whose parents were brown eyed marries a brown eyed woman whose father was brown eyed whose mother was blue eyed they have one female child who is blue eyed make a pedigree chart based on the information above.
Friday, January 18, 2013 at 9:41pm

Please help -biology
why does water and hydrogen peroxide have different chemical and physical properties
Thursday, January 17, 2013 at 7:37pm

Biology
why does water and hydrogen peroxide have different chemical and physical properties
Thursday, January 17, 2013 at 7:34pm

Biology
why does water and hydrogen peroxide have different chemical and physical properties
Thursday, January 17, 2013 at 7:12pm

biology
If the side chain of a glutamic acid residue has a pKa of 4.1, at pH 6.1 the ratio of uncharged to charged side chain would be about A. 100:1 B. 10:1 C. 1:1 D. 1:10 E. 1:100
Wednesday, January 16, 2013 at 3:15am

biology
Which of the following amino acids has the most hydrophilic side chain? A. F B. Q C. V D. M E. A
Wednesday, January 16, 2013 at 3:14am

biology
Which of the following amino acids has a side chain that carries a negative charge in its conjugate base form? A. H B. W C. C D. K E. N
Wednesday, January 16, 2013 at 3:13am

Biology
1.Which of the following accurately describes the relationship between cyanobacteria and halophiles? A.Cyanobacteria are photosynthetic, which suggests they existed before halophiles. b.Halophiles can survive in extreme conditions, which suggests they are more evolved than ...
Tuesday, January 15, 2013 at 6:49pm

Chemistry - Biology
Explain why glucose is improtant to humans ? Ans:Glucose is important to the body cecause it helps the reporduction of cells, coposition of proteins and nucleic acids foundin all cells. It helps growth and repairs tissues . Is that correct??
Tuesday, January 15, 2013 at 12:15am

biology
what is the importance of islands in the study of evolution?
Monday, January 14, 2013 at 9:21pm

Biology
What will happen to the enzyme activity if both competetive and non-competetive inhibitors appear at the same time together with substrates in a reaction? Which inhibitor will affect the rate of the reaction in more?
Sunday, January 13, 2013 at 3:17pm

Biology
What will happen to the enzyme activity if both competetive and non-competetive inhibitors appear at the same time together with substrates in a reaction? Which inhibitor will affect the rate of the reaction in more?
Sunday, January 13, 2013 at 3:16pm

biology honors
In which tissue of plants are new cells created? A.dermal B.vascular C.ground D.meristematic
Saturday, January 12, 2013 at 4:06pm

biology honors
In which tissue of plants are new cells created? A.dermal B.vascular C.ground D.meristematic
Saturday, January 12, 2013 at 3:52pm

biology honors
Why do leaves tend to be flat.choices a.so that water can easily be absorbed and carried to the rest of the plant. B.so that sunlight can easily penetrate to the leafs photosynthetic tissues. C.so that nutrients can easily enter the plant and be be used for structure and ...
Saturday, January 12, 2013 at 3:40pm

Biology
Why DNA is more stable than RNA?
Saturday, January 12, 2013 at 11:53am

Biology
What is the case for that sucrose is said to be non-reducing sugar?
Saturday, January 12, 2013 at 9:43am

greenhouse biology
what organism is a porkaryotic cell?
Friday, January 11, 2013 at 4:50pm

Biology
check my answers? 1. What is the difference between Darwin's theory of evolution and Lamarck's theory of evolution? A)Darwin believed that organisms changed gradually over time, but Lamarck thought they changed suddenly. B)Lamarck believed that organisms could acquire ...
Friday, January 11, 2013 at 9:35am

Biology
So I am completely confused. I am in the process of taking a quiz and the question says "a factor that seems to disappear" my options are punnet square, heredity, dominant factor, recessive factor, alleles, or genetics??? Help please? Thanks
Thursday, January 10, 2013 at 2:38pm

Biology
how do chromosomes determine sex a family has four children, two girls, and two boys. one girl and one boy are color blind. are their parents color blind name at least three traits that are a results of polygenic inheritance weight, eye clor, height (right) what possible ...
Thursday, January 10, 2013 at 2:03am

biology
do you know how much drops of dcpip is required to make .9 , .6 , 1.1 and .8 cm squared my partner and i frogot to write down the number of drops to make the dcpip volume
Tuesday, January 8, 2013 at 9:41pm

Biology
12. A main difference between fungi and plants is that fungi a. have cell walls. b. produce spores. c. cannot make food. d. all of the above.
Tuesday, January 8, 2013 at 12:28am

Biology
34. The _____ has a cell covering made of two parts. a. diatom b. dinoflagellate c. euglena
Tuesday, January 8, 2013 at 12:21am

Biology
28. Malaria is caused by a a. sporozoan. b. diatom. c. dinoflagellate. d. fungus.
Tuesday, January 8, 2013 at 12:03am

Biology
these are some of the questions that i couldnt find the answers in the book. :( 17.The relationship between a fungus and a green organism is an example of a. neighbors. b. mutualism. c. parasitism. d. saprophytes.
Tuesday, January 8, 2013 at 12:02am

biology
16. In one stage of it's life cycle, the slime mold flows like a(n) a. paramecium. b. euglena. c. diatom. d. amoeba.
Tuesday, January 8, 2013 at 12:01am

Biology
55. A living thing, usually with one cell that has a nucleus and other cells parts, is a a. moneran. b. virus. c. protist. d. fungus.
Monday, January 7, 2013 at 11:47pm

Biology
22.Which of the following is not a member of the protist kingdom? a. bacteria b. slime mold c. paramecium d. amoeba
Monday, January 7, 2013 at 11:37pm

biology
why are yeast classified as eukaryotes? i know they are in kingdom fungi and all the members are eukaryotes but why?
Monday, January 7, 2013 at 7:31pm

biology
please help me with these to questions! The trait that viruses share with living things is the ability to a. adapt. b. use food. c. respond. d. reproduce. and Some viruses cause the host cell to reproduce both itself and the virus. Groups of these cells become a. polio. b. ...
Monday, January 7, 2013 at 6:06pm

Biology
The trait that viruses share with living things is the ability to a. adapt. b. use food. c. respond. d. reproduce.
Monday, January 7, 2013 at 5:31pm

Biology
Some viruses cause the host cell to reproduce both itself and the virus. Groups of these cells become a. polio. b. tumors. c. mumps. d. rabies.
Monday, January 7, 2013 at 5:30pm

Biology
The _____ is always written first in a scientific name. a. genus b. species c. genus and species
Monday, January 7, 2013 at 4:04pm

biology
what is a calorie?
Monday, January 7, 2013 at 3:06pm

Biology
Post a New QuestionCurrent QuestionsChat With Live Tutors Homework Help: Biology Posted by Anonymous on Sunday, January 6, 2013 at 1:46pm. 1. What is the term for the end of a bone that is closest to the mid line of the body? Diaphysis Metaphysis Proximal epiphysis Endosteum 2...
Sunday, January 6, 2013 at 9:32pm

Ant
10. Diffusion means: a. cultural traits are expressions of our biology. b. the environment is responsible for culture change. c. cultures borrow ideas, material items, and concepts from each other. d. people are often unwilling to move to new locations.
Sunday, January 6, 2013 at 6:55pm

Biology
1. What is the term for the end of a bone that is closest to the mid line of the body? Diaphysis Metaphysis Proximal epiphysis Endosteum 2. What is the area called where the nerves pass through the scapula? Scapular notch Acromian process Glenoid fossa Subscapular fossa 3. ...
Sunday, January 6, 2013 at 1:46pm

biology
write the short note of cell inclusions,including the important points?plz help...
Friday, January 4, 2013 at 9:56pm

biology
biology is the study of what?
Thursday, January 3, 2013 at 1:10pm

Biology
In a lab on lung capacity where lung volumes (Tidal Volume, Expiratory Reserve Volume, Inspiratory Capacity, Inspiratory Reserve Volume, and Vital Capacity) are measured... Why can't you measure the Inspiratory Reserve Volume (IRV) directly? (In the procedure it says to do...
Wednesday, January 2, 2013 at 4:20pm

Medical Biology
Which of the following condition could result from years of smoking? a) tuberculosis b) emphysema c) empyema d) atelectasis
Tuesday, January 1, 2013 at 8:03pm

Biology
In a lab on lung capacity where lung volumes (Tidal Volume, Expiratory Reserve Volume, Inspiratory Capacity, Inspiratory Reserve Volume, and Vital Capacity) are measured... Why can't you measure the Inspiratory Reserve Volume (IRV) directly? (In the procedure it says to do...
Monday, December 31, 2012 at 9:50pm

biology help please- check my answer???:)
What happens during photosynthesis? A)Heterotrophs consume ATP. B)Heterotrophs produce ATP. C)Autotrophs consume carbohydrates. D)Autotrophs produce carbohydrates. I think its D.
Wednesday, December 26, 2012 at 2:57pm

math
A school has 63 students studying Physics, Chemistry and Biology. 33 study Physics, 25 Chemistry and 26 Biology. 10 study Physics and Chemistry, 9 study Biology and Chemistry while 8 study both Physics and Biology. Equal numbers study all three subjects as those who learn none...
Monday, December 24, 2012 at 9:54pm

Biology- check my answer (diff one)
Which of the following are true concerning living things? Check all that apply. A)They contain a vital force absent in nonliving things. B)They are composed of molecules that contain carbon-carbon bonds. C)They undergo chemical reactions to use energy they acquire from the ...
Wednesday, December 19, 2012 at 4:32pm

Biology-check my answer
Hershey and Chase used the 35S isotope to label proteins. How does this isotope differ from the 32S isotope found in greatest natural abundance, and why did they choose 35S instead of 32S? A)35S has more protons than 32S; Hershey and Chase used it because it has a greater mass...
Wednesday, December 19, 2012 at 4:11pm

Biology
what two mutations cause a shift or after the sequence after the mutation?
Tuesday, December 18, 2012 at 10:12pm

Biology
do mutations occur in DNA or RNA? Explain
Tuesday, December 18, 2012 at 10:08pm

Biology
what is the difference between a gene mutation and a chromosomal mutation?
Tuesday, December 18, 2012 at 10:07pm

Biology
what would happen to the respiratory system if it didnt have the nose, pharynx, larynx, trachea, bronchi, lungs, and mucus? I know what would happen to the human body but what would happen specifically to the respiratory system? Thank you.
Tuesday, December 18, 2012 at 6:59pm

English
Hey, Is this a text with a lot of mistakes in a/an, the? The most people live in the city called Berlin in Germany, where they eat mostly a Weisswurst for a meal and the people weare all Dirndls ans the Lederhosen. When they go to the school they learn the most common subjects...
Tuesday, December 18, 2012 at 2:14pm

biology
escribe the biochemical process of biological fixation of nitrogen. write the general equation of biological nitrogen fixation.
Tuesday, December 18, 2012 at 8:19am

Biology
Suppose that a species of toads is introduced into a new environment in an attempt to reduce the population of insects. The toad has no natural predators in the new environment. The toad population would most likely? A)increase exponentially. B)increase logistically. C)...
Monday, December 17, 2012 at 6:08pm

Biology HELP PLEASE
What are goals of science? Choose all that apply. A)to investigate the natural world. B)to establish unchanging facts. C)to explain natural phenomena. D)to make useful predictions based on evidence. I think a and d but im not entirely sure...
Monday, December 17, 2012 at 5:48pm

Biology
Suppose you are a scientist trying to help people who cannot produce an enzyme needed for proper digestion. How could you use genetic engineering techniques to make transformed bacteria that produce the enzyme?
Monday, December 17, 2012 at 5:17pm

Biology
The matching strand to the one in Figure 12-7, reading from the bottom up, would be??? the figure is (from the bottom up) T C G A please help im so lost. :(
Monday, December 17, 2012 at 10:54am

biology
how do transport proteins that are pumps differ from those that are channels
Sunday, December 16, 2012 at 10:03pm

social studies
can you see if i have good grammar,usage, mechanics and spelling Job description: use various types of equipment, develop, secure, and packages. Physical evidence for scientific evaluation and comparison, prepares detailed reports on the observation and activities at the scene...
Sunday, December 16, 2012 at 9:52am

Biology
Eukaryotic chromatin can be chemically modified in several ways. List at least three modifications and describe the effect of these modifications.
Saturday, December 15, 2012 at 9:28pm

Biology
If you were to examine the mature mRNA that comes from a certain human gene, and then line it up to the actual DNA sequence of that same gene, you would see many differences. What would these differences be and where do they come from?
Saturday, December 15, 2012 at 9:26pm

Biology
if the tall f1 generation of pea plants are allowed to self pollinate, the offspring will have this ratio for tall and short? PLEASE HELP ME!! I HAVE A FINAL AND I NEED HELP!!!
Saturday, December 15, 2012 at 11:55am

biology
Following the usual pathway of circulation blood flows from the __________ to ___________, to_____________and to__________
Friday, December 14, 2012 at 9:57pm

biology
The ___________ ____________ supplies blood from the heart to all organs except the lungs
Friday, December 14, 2012 at 9:56pm

biology
Terms like punctiform and round relate to colonial ____________while smooth and curled relate to colonial___________
Friday, December 14, 2012 at 9:55pm

biology
Traditional phylogenetic results have been challenged by the results of _________________
Friday, December 14, 2012 at 9:54pm

Biology
A person with AB blood type is transfused with type O blood. What happens and why? ---- The textbook says there will be no immune reaction. I understand that the transfused type O red blood cells have no antigens and the recipient type AB plasma has no antibodies. However, won...
Friday, December 14, 2012 at 7:32pm

Can anyone please help me this biology please !!!
I am really stuck in this biology it super hard how do yeast cells benefit from fermentation ?I wil be happy if anyone would help me out thanks.
Thursday, December 13, 2012 at 8:34pm

Please I'm begging someone help me with biology
I need help with listing two ways that single - celled fungi are different from bac-terial cells??? I'm so clueless I'm begging anyone to help me thanks
Thursday, December 13, 2012 at 7:55pm

Please I'm begging someone help me with biology
I need help with listing two ways that single - celled fungi are different from bac-terial cells??? I'm so clueless I'm begging anyone to help me thanks
Thursday, December 13, 2012 at 7:54pm

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