Biology - February 2007

Speciation occurs when the gene pools of two poplulations change oer time in differnt directions. The organisms chacnge so much that they can no longer mate and become different speices. What are two ways populations become isolated from each other?

2007-02-13 11:43:02 · 5 answers · asked by atrankid 2

what is the exoskeleton, what does it do, and how is it significant to the insect? details plz

2007-02-13 11:29:24 · 13 answers · asked by kagome5378 2

List some steps of evolution by natural selection by which a population of mosquitoes becomes resistant to the insecticide DDT. Begin with a DDT-susceptible population, before DDT is introduced. Remember, microevolution is a change in allele frequency.

plz explain how do u do this? I'm confused...

2007-02-13 11:23:36 · 2 answers · asked by sdt3 1

PRE-BIOTIC WORLD. WHAT 2 MECHANISMS COULD HAVE ALLOWED POLYMERIZATION IN THIS oxygen difficient environment ?

2007-02-13 11:12:45 · 1 answers · asked by Anonymous

help please

2007-02-13 11:11:45 · 2 answers · asked by jesselove91 1

2007-02-13 11:10:09 · 7 answers · asked by Anonymous

MOLECULE IN CELLS WAS RNA RATHER THAN DNA

2007-02-13 11:06:13 · 2 answers · asked by Anonymous

i know it is spoiled and you cant drink it, but i want to go further and more in depth and detail.

2007-02-13 11:05:00 · 5 answers · asked by what? 7

First off, I tend to vote Democrat and could not be more against the Iraq War. Visit some other discussions on this site. You’ll see that I have big issues with conservative political policies. Secondly, Lawful does NOT = Right nor does it = correct! Your argument for relative morality I will agree does make sense on a grand scale. Peoples’ sense of morals can differ and still fall within the acceptable societal norm. However, for specific issues, morals are not relative, but concretely static! One of those morals is the right to live your life without it being intentionally taken away from you by another human being. Imagine your reaction if you were having a discussion with someone and they told you, with all sincerity, that they didn’t think killing or ending human life was morally wrong. Would you consider this person moral? Would you still talk to this person? My bet is that you would not. An overwhelming majority of people would think that this person was off their rocker and would avoid them like the plague. Furthermore, I still get a kick out of fellow debaters trying to discount my argument because they say I’ve based my belief on my religion. I have done no such thing (I haven’t gone to church regularly in years). I’ve used deductive logic, with science and the basic moral principle that I just mentioned above concerning right to life as my benchmarks, to form my conclusion. Science tells us that at conception, a living human cell is formed. It begins a process called mitosis, which is the process of cell division, or growth. Science also tells us that dead cells cannot divide and grow. If these cells are human cells, and they are growing, then from the above we can logically conclude that we do, in fact, have human life. And if we can, from above, mutually agree that human life has the right to complete their existence without being eliminated in an intentional way (society’s basic agreement on right to life), then we can conclude that abortion is morally wrong. It’s not a hard argument to follow. I do appreciate your history lesson with regards to the Courts rulings (I’m aware of the Court’s rulings, thank you), but again, they don’t really apply in our discussion. I never argued that abortion was illegal, or that women didn’t have the legal right to have them done. What I did was say they didn’t have the moral right. What I did was call them immoral, based on irrefutable scientific fact, an irrefutable and binding societal contract to not end human life, and deductive reasoning. That’s actually ironic when you think about it. Here we have, as I said above, far left liberals arguing ethics and moral standards when it comes to economic and political matters, such as minimum wage fairness, characteristics of the free market, CEO golden parachutes, gaps in compensation between the elitists and proletariats, and desired government intervention during the oil price surge ( just to name a few). Yet, they can’t see how their own argument and position in this discussion is violating the most basic societal contract. There’s HUGE inconsistency on the left when it comes to a discussion about morals. But the real kicker is this: while there are pro lifers out there that are whacked and clearly have gone off the deep end, many pro lifers cite the same arguments I have, and we get accused of trying to set up a sectarian form of government to push our religious beliefs. And on the other hand, you have the pro choicers who contend that life doesn’t begin until birth. Of what are they basing that on in this MORAL argument? Science rejects their claim. So what then are they basing it on? The only thing that’s left is…faith.

2007-02-13 11:01:50 · 5 answers · asked by Dark Helmet 2

please tell me the exact process for my science project. thanks!

2007-02-13 10:55:59 · 5 answers · asked by lon bon 1

a picture that is label.

2007-02-13 10:54:18 · 3 answers · asked by mari 6

Of the following three, which would you major and why?

-Biochemistry
-Molecular Biology
-Microbiology

2007-02-13 10:52:55 · 3 answers · asked by avalentin911 2

why did plants survive the mass extinctions more so than animals??

2007-02-13 10:49:33 · 5 answers · asked by Anonymous

1. How does the arrangement of plant cells and animal cells differ?

2. Compare the onion cells to the tomato cells. explain why the tomato do not appear to have any chloroplasts?


3. Why would a mammal’s cells require more mitochondria than a lizard’s?


4. Why would muscle tissue cells require more mitochondria that fat cells?


5. What role does the Golgi apparatus play in the transport of materials into and out of the cell? What kind of materials does it package?

2007-02-13 10:46:18 · 3 answers · asked by Anonymous

2007-02-13 10:36:26 · 11 answers · asked by Laurie C 1

Okay, My mom has brown eyes, my dad has hazel eyes, and my eyes are brown. My boyfriends parents both have green eyes, and he also has green eyes. If my boyfriend and I ever had children would it be more likely that our children had brown eyes, green eyes or hazel eyes?

2007-02-13 10:33:34 · 6 answers · asked by emoragdollx3 1

Know this ounds kinda obvious but just wanted to confirm, is there more pigment in the middle of the beetroot than on the edges?

2007-02-13 10:18:52 · 2 answers · asked by lykastar 3

2007-02-13 10:14:59 · 3 answers · asked by Anonymous

I want to find a part time job to help me pay for my graduate studies and other things. I am finishing my bio major. I heard that you can work as a lab technician in pharmaceutical industries, but I would like to know if other times of jobs exists for people with bachelors degrees.

I know you can't do much if you don't specialize your degree on anything but I just want some money to help me pay some stuff.

2007-02-13 10:09:03 · 5 answers · asked by Anonymous

Pineapples are classified as fruits...So, do they actually have seeds anywhere inside of them? If so, where?
Just asking because I know that in order for something to be called a fruit in biology terms, it has to have seeds in it.

2007-02-13 10:04:35 · 4 answers · asked by Anonymous

i need to know there shape, how they move, reproduce, gets energy, example, and Disease
please help give me this information
i know there are many just PLEASE help i hav been looking for HOURS

2007-02-13 09:47:08 · 1 answers · asked by seanachirico 1

2007-02-13 09:41:26 · 1 answers · asked by don't_worry_about_it 1

That is, why does an increase in carbon dioxide make blood more acidic?

2007-02-13 09:40:48 · 6 answers · asked by Clean Independent Energy 3

What are the six functions of proteins?

2007-02-13 09:26:01 · 2 answers · asked by Anonymous

Eukaryotic-Prokaryotic??? what one and there shape please help....

2007-02-13 09:24:47 · 1 answers · asked by seanachirico 1

It's 11 letters long and the 8th letter is 't'.
I'm doing a crossword for biology...I've looked all over for this. If you can help, please do!
Thanks...

2007-02-13 09:19:07 · 1 answers · asked by paralyzed nomad 3

2007-02-13 09:14:26 · 2 answers · asked by Anonymous

2007-02-13 09:06:24 · 4 answers · asked by don't_worry_about_it 1

2007-02-13 09:02:08 · 5 answers · asked by jmartinme 2

2007-02-13 09:01:10 · 1 answers · asked by jmartinme 2