I have to have this question answered for my Biology class by 2 p.m. today. Thank you.
199021
Horses have hair.  Depending on the climate, an Arabian horse will grow a substantial winter coat.\n\nIf you compare an Arabian living in California, with one living in Montana, you can visibly see the difference in their winter coats.
128161
You've asked a rather broad question.\n\nHere's a good place to start:\n\nhttp://en.wikipedia.org/wiki/Kingdom_%28biology%29\n\nMore specific questions would be easier to answer.
453912
haha so much for doing your hwk\nc d c c a b b d b b e? c b c? e a a a c b b a b? d?\n\nThats all i have time for... im dont remeber to much on this but best of luck to you\n\nLet me see if I can find my old textbook site and you can read it:\n\nah... here\nhttp://www.mhhe.com/biosci/genbio/maderbiology7/student/olc/chap08-outline.mhtml
548445
maybe what your teacher is trying to say here is the body temperature. now search for that answer. it's your homework.
504520
c is the right answer.\n\nA makes no sense in relation to the question\nB natural selection has a bit of randomness in it of course but is basically not random. I mean, the fastest critter in the herd may have had an unlucky day and so he will not procreate, oops. But otherwise, the slowest are intentionally selected by the lion and that is never random.\nD just isn't true, plenty of proof there.
121392
What class was this in? What grade level? What text were you using?  I may be able to help you if I know the context in which the question was raised. I have a feeling that I am not getting all the information you had. Please tell me and maybe I can help. I am an old chemist and microbiologist.
162601
http://faculty.clintoncc.suny.edu/faculty/Michael.Gregory/files/Bio%20101/Bio%20101%20Lectures/DNA/dna.htm
220103
I wouldn't say that I'm anymore intelligent than someone else, but I did want to answer your question, so....\n\nYou are confusing the theory of evolution (diversification of species) with the theory of abiogenesis (life from natural compounds).  That's okay, many people confuse the two.\n\n1.  How did life get from soup to single-celled organisms?  From wikipedia, "J.B.S Haldane suggested that the earth's pre-biotic oceans - very different from their modern counterparts - would have formed a "hot dilute soup" in which organic compounds, the building blocks of life, could have formed.\nIn 1953, taking their cue from Oparin and Haldane, the chemists Stanley L. Miller and Harold C. Urey carried out an experiment on the "primeval soup". Within two weeks organic amino acids, the basic building blocks of life, had formed. While Miller and Urey did not actually create life; they demonstrated that a more complex molecule — the amino-acids — could emerge spontaneously from simpler chemicals, in the presence of an external energy source in an atmosphere largely devoid of oxygen (the experiment involved shooting a spark, representing lightning, into their flask of supposedly primitive earth-gases)."\n\n2.  How did the original cell eat and develop asexual reproduction?   You are putting the cart before the horse.  In order to get to the cell stage, self-replicating molecules had to exist first... i.e. reproduction & "nourishment"  was occurring well before the cell stage.  Also, what are you referring to with "nourishment"?  For a self-replicating molecule, nourishment would consist of other molecules that it could combine with to form more of itself.\n\n3.  In the "soup", how did primordial cells develop resistences?  Resistence to what?  I don't understand this question.  To the environment?  To viruses or bacteria?  You need to elaborate here, I'm sorry.  I think it ties into your next answer, but not sure.  Please read my answer to #4.\n\n4.  How did it evolve everything it needed if it wasn't in it's DNA?  Can you give an example?  Hmm.  I'm trying to understand how you are approaching this question.  Let's say you have 100 little cells, each a little different.  5 cells can withstand a higher water temperature than the others because of a mutation they have.  One day the temperature goes up and kills off the other 95 cells.  That only leaves the 5 with the mutation.  They scamper off and reproduce like crazy... the cell strain has just evolved a little.  Now repeat this a gazillion times with a dynamic interacting environment and there you go.
369557
http://www.biologie.uni-hamburg.de/b-online/e02/form.htm
506585
http://en.wikipedia.org/wiki/Cell_%28biology%29\n\ndoes this help any?
5827
The following site has the answer
502562
It would post probably be sunlight.......some plant organisms may survive without water for long periods of time, such as ones in the desert....... but sunlight is required for green plants to make food  which unlike for humans......... food is the bigger priority than water
66084
This may seem like a silly suggestion, but try representing the elements mentioned in your textbook (which I'm sure has some illustrations) with pieces of paper, matches, beans or something like that, so you can understand the events and the outcome. \nNow, if you _really_ want an explanation, here it comes (I've ommited the names of the phases, they'll be in your textbook).\n\nMeiosis includes 2 cell divisions with different characteristics. \nWe start with a diploid (2 n) cell, in which DNA duplication has occurred so that each DNA strand is double. These strands do not yet appear as chromosomes (condensed bodies); in fact, the chromatin strands have to be "relaxed" in order to duplicate. \n\n***Meiosis I: (in which the nº of chromosomes decreases to half)\n1. The chromatin (DNA strands) starts to condense and appears as small dense dots (the chromosomes) within the cell nucleus. These chromosomes will each have 2 "arms" (they look like an X or a V) because the DNA in each has been duplicated.\n2. Now all these chromosomes align in homologous pairs, with the aid of a transparent structure formed by tiny intracellular fibers (the spindle) that has formed and will help them to move in orderly fashion within the nucleus.\n3. While they keep condensing, each homologous chromosome contacts its "brother", and they exchange some fragments of their DNA ("crossing over"). Usually only one "arm" of each  chromosome participates in crossing over. \n4. In the meantime, the nuclear membrane is disintegrating...\n5. The pairs of homologues, still united, align at the middle (equator) of the spindle... \n6... and then each pair of homologues is divided, one chromosome of each pair goes toward each "pole" of the spindle. \n7. New nuclear membranes form around the 2 groups of chromosomes. Each of these groups will only have ONE of each pair of homologues. Essentially the information in each new nucleus is the same, BUT has some differences because, as you recall, there has been crossing over i.e. partial exchange of DNA between homologues. \n8. The original cell with the 2 nuclei divides and forms 2 cells, with half the nº of chromosomes of the original cell (haploid or n). Each of the chromosomes still has a duplicate DNA strand.\n\n... the cell takes a short break (you can take a break too!)... but the chromatin does not duplicate this time (it's already done that)\n\n***Meiosis II: (in which each double DNA strand becomes single again, this phase is similar to a normal mitosis).\n1. The chromatin condenses again, so that it appears as chromosomes.\n2. This time the spindle aligns the center of each chromosome at its equator.\n3. The central part of the chromosome is duplicated and the sister "arms" (chromatids) separate, each migrating to opposite poles.\n4. Now you have two groups of chromosomes, each group still has the haploid (n) nº of chromosomes (the same amount with which they started this 2nd meiosis) but now, each chromosome has a single DNA strand. \nA new nuclear membrane forms around each of these groups of chromosomes.\n5. The rest of the cell divides.\n\nSo, to sum up: you started with ONE diploid cell. You end with FOUR haploid cells. In animals, this process only happens during the production of gametes. \nIf we're talking about the formation of female gametes, then only ONE of the 4 resulting cells will become an ovule (and that only after more maturation), the other 3 cells form "polar bodies".\nIn contrast, when it's spermatozoids being produced, all FOUR resulting cells will become spermatozoids. \nThat's one of the reasons sperm is cheaper than ovules! There's just more of them in the entire animal kingdom.\n\nNow, what is the purpose of this extremely complicated (the above is a very simplified version) process? The result will be cells that have half the chromosomes of the normal body cells. These cells
37044
5 ways? In 25 years of teaching Biology I have not come across this idea.\nHave a look at the refered site (below) where you may find what you are seeking.
164629
the first answer is definitely "bacteria" and the second has to be "cyanobacteria"
120652
http://www.science.siu.edu/microbiology/micr201/chapter8N.html\n\nPotential Energy!  Check it out yourself at the link above.
425280
flowering plants! we just learned this in my biology 110 class at penn state! oh, my professor would be so  proud :)