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April 21, 2014

Homework Help: Science: Biology

Recent Homework Questions About Biology

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Biochemistry, Biology, Chemistry
1. I believe that there is no way to know this for sure just looking at the Km values. Although Km=k2+k3/k1, their is know way of knowing unless more information is provided. k2 is the rate constant for the dissociation of the ES complex to E+S. k3 is the rate constant for the...
Monday, January 28, 2013 at 9:21am

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 12-DNA
You couldn't know exactly, but you could come close. Proteins are made up of long chains of amino acids. There are twenty different amino acids. Each is coded for, in DNA, by one or more...
Sunday, January 27, 2013 at 5:59pm

Biology
http://www.diabetesmanagement101.com/How​-Diabetes-Affects-The-Brain.html http://www.ncbi.nlm.nih.gov/pmc/articles​/PMC2797942/
Sunday, January 27, 2013 at 1:33pm

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

BIOLOGY
Since the heart is a big muscle and "myo-" refers to muscle, guess which one I would choose.
Sunday, January 27, 2013 at 12:01pm

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
Cindy, I saw this post earlier and wanted to answer it, but I had to take care of some things. You are about 89% correct: ∆G only tells you if the reaction is spontaneous or not; I can not stress this enough, but it DOES NOT tell you anything about the rate of a reaction...
Saturday, January 26, 2013 at 10:54pm

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
Thank you!
Saturday, January 26, 2013 at 7:53pm

Biology
You have it right on both accounts. The exothermic will go faster (generally). In general, the catalyzed reactions go "faster" (generally). In both cases, the first reaction will go faster.
Saturday, January 26, 2013 at 7:51pm

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

Science/General Biology
You are correct for all of the except 6. The answer is d, all of the above.
Wednesday, January 23, 2013 at 10:03pm

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
It depends on what the initial genotypes were, but lets use Mendel's experiment to work this out. Lets say that the genotypes for the yellow seeds are YY and GG for the green ones for the parental generation. You have to show two letters, with each letter representing an ...
Wednesday, January 23, 2013 at 9:40pm

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
I think Your right. I'm not good at it either. Sorry if i get it wrong but thats my answer
Tuesday, January 22, 2013 at 12:36pm

Biology
ill check out the site :) thanks ms sue
Tuesday, January 22, 2013 at 12:36pm

Biology
Biology is definitely not my field, but, after reading this site, I think A is the best answer. http://www.nature.com/scitable/topicpage​/the-molecular-clock-and-estimating-spec​ies-divergence-41971
Tuesday, January 22, 2013 at 12:35pm

Biology-anyone
can someone check my answer?
Tuesday, January 22, 2013 at 12:33pm

Biology-Ms. Sue?
Ms. Sue can you check my answer plz?
Tuesday, January 22, 2013 at 12:30pm

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
thanks :) I don't have one....
Tuesday, January 22, 2013 at 11:33am

Biology
Yes, I think C is the best answer. What does your book say?
Tuesday, January 22, 2013 at 11:18am

Biology
I think what it is saying there implies that its C. is that right? :)
Tuesday, January 22, 2013 at 11:16am

Biology
I think there's a better answer. http://en.wikipedia.org/wiki/Molecular_c​lock
Tuesday, January 22, 2013 at 11:14am

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
Since this is not my area of expertise, I searched Google under the key words "sugars or starch in a banana" to get these possible sources: http://www.google.com/search?client=safa​ri&rls=en&q=sugars+or+starch+in+a+banana​&ie=UTF-8&oe=UTF-8 In the future...
Monday, January 21, 2013 at 11:36am

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

Biology
Let B = brown and b = blue B is dominant over b. Parents of man are both Bb, man is bb. Parents of woman are bb (mother) and either BB or Bb for father, so woman is Bb. Female child is bb. Now make your chart.
Sunday, January 20, 2013 at 1:36pm

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

Environmental Biology
http://www.google.com/webhp?source=searc​h_app#hl=en&tbo=d&sclient=psy-ab&q=subsi​dy+environmental+damage&oq=subsidy+envir​onmental+damage&gs_l=serp.3..0i30j0i5i30​.6157.6157.3.7031.1.1.0.0.0.0.85.85.1.1.​0.les%3B..0.0...1c.1.8Mpp_TNhhOA&pbx=1&b&#...
Saturday, January 19, 2013 at 1:23pm

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
YOUR WELCOME! :)
Thursday, January 17, 2013 at 8:11pm

Please help -biology
Thank you!!!! :)
Thursday, January 17, 2013 at 7:59pm

Please help -biology
Because they both have different bonds. Water contains stable O-H bonds, whereas hydrogen peroxide contains a much less stable O-O bond as well. Because there is an extra bond in hydrogen peroxide, the molecule as a different geometry than the water molecule. This already ...
Thursday, January 17, 2013 at 7:38pm

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

science
I guess not. If you post your question, perhaps someone else could help. Also, it would help to indicate your specific subject in the "School Subject" box (geology, biology, chemistry, etc.), so those with expertise in the area will respond to the question.
Thursday, January 17, 2013 at 6:42pm

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-homologous chromosomes
By convention, each percent cross-over frequency equals 1 map unit, so the two alleles are 16 map units apart.
Tuesday, January 15, 2013 at 8:20pm

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

Biology
Did you find out the correct answers?!
Tuesday, January 15, 2013 at 2:04pm

biology
On isolated islands, organisms can evolve in separate ways from the same organisms on the mainland.
Tuesday, January 15, 2013 at 12:50pm

biology
On isolated islands, organisms can evolve in separate ways from the same organisms on the mainland.
Tuesday, January 15, 2013 at 12:50pm

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 HW HELP
why isnt anyone answering??? its not that hard . \wh
Sunday, January 13, 2013 at 6:20pm

biology
Those organisms categorized as prokaryotic are all the members of Kingdom Monera. The representative groups are bacteria ( Blue Green Algae & Eubacteria). There is no prokaryotic organism in the rest Kingdoms.
Sunday, January 13, 2013 at 3:43pm

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
DNA is more stable than RNA because it is double stranded and bound together by hydrogen bonds. RNA does not have this bond and is open for chemical reactions. This is useful because RNA "prints" new DNA.
Saturday, January 12, 2013 at 12:08pm

Biology
Since Jiskha doesn't have a biology expert at this time, please try posting your question at this site. http://www.biology-online.org/biology-fo​rum_search_20140419/
Saturday, January 12, 2013 at 12:05pm

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

Biology
Since Jiskha doesn't have a biology expert at this time, please try posting your question at this site. http://www.biology-online.org/biology-fo​rum_search_20140419/
Saturday, January 12, 2013 at 9:47am

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

Chemistry..
I had no luck with google. Everything returned was either 1. weed as in marijuana or 2. biology as in paper/metal sign with sticky stuff on the backing. I assume you want something about those sticky burrs one collects on one's clothing as one runs through a field with a ...
Friday, January 11, 2013 at 11:42pm

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

Biology
See how ridiculous this is? Would you want such a response to one of your questions? No you would not.
Friday, January 11, 2013 at 1:49pm

Biology
STOP SPAMMING
Friday, January 11, 2013 at 1:48pm

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
1, 2, 6, 11 are wrong answers !!
Thursday, January 10, 2013 at 11:57pm

Biology
Oh, and can someone explain the punnet square thing? I do not understand it. Thanks again.
Thursday, January 10, 2013 at 2:40pm

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
XX = female and XY = male Children receive on sex chromosome from each parent. Colorblindness is a recessive trait on the X chromosome. Try a Punnett Square. http://www.google.com/search?client=safa​ri&rls=en&q=punnett+square&ie=UTF-8&oe=U​TF-8 Right with the three...
Thursday, January 10, 2013 at 12:13pm

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
the biological name is written as genus, then species therefore it is a. genus
Tuesday, January 8, 2013 at 6:44pm

Biology
a. sporozoan
Tuesday, January 8, 2013 at 6:42pm

Biology
b) dinoflagellate
Tuesday, January 8, 2013 at 6:40pm

Biology
yes your answer is just fine, but i asked why it could be useful and you gave me crime scene
Tuesday, January 8, 2013 at 5:22pm

Biology
cannot make food.
Tuesday, January 8, 2013 at 9:40am

Biology
Since Jiskha doesn't have a biology expert at this time, please try posting your question at this site. http://www.biology-online.org/biology-fo​rum_search_20140419/
Tuesday, January 8, 2013 at 8:18am

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
bacteria
Monday, January 7, 2013 at 11:41pm

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
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. Reproduce is right.
Monday, January 7, 2013 at 9:37pm

biology
Since this is not my area of expertise, I searched Google under the key words "why are yeast classified as eukaryotes?" to get these possible sources: http://www.google.com/search?client=safa​ri&rls=en&q=why+are+yeast+classified+as+​eukaryotes%3F&ie=UTF-8...
Monday, January 7, 2013 at 9:20pm

biology
reproduce
Monday, January 7, 2013 at 9:18pm

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
http://www.cactus-art.biz/note-book/Dict​ionary/Dictionary_S/dictionary_scientifi​c_name.htm
Monday, January 7, 2013 at 4:39pm

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