Biology - January 2007

Is Evolution a "scientific" theory? Does it have the qualities of every other scientific theory. For example, can it predict anything that couldn't have been predicted before Darwin published his work? It dosen't seem as though darwinism can predict anything because darwinism can accomadate any scenario. As Karl Popper once said during a breif moment of honestly, if in an experiment you put some bacterium on an unihabited planet and left it there for 2 billion years, darwinism could account for whatever happened. If there were only a few simple organisms darwinism could explain. if there was nothing darwinism could explain. if there were advanced life forms darwinism could explain. A theory that can explain every conceivable scenario is not a scientific theory. A true scientific theory tells us about the way the world works, which means it must be able to predict. Much of what evolution DOES claim to predict are about changes WITHIN species that could have been made pre-darwin.

2007-01-18 16:36:38 · 4 answers · asked by Perceiver 3

How could Dr. Spencer Wells ever hope to identify ONE pair of humans to give start to all of us? (see more details on the NatGeo DNA project at www.nationalgeographic/genographic)

This sounds very much like a attempt to "prove" the holly or extraterrestrial start of human civilization, contrary to the Darwin's theory... If they did not mean to diminish Darwin's theory, how can they be able to trace the Pair of Humans. They may only trace at least a tribe or two, AND THEN they may trace it back to supermonkeys and even dolphins or something in the ocean! Not just ONE pair of humans, especially and if only Dr. Spencer Wells admit that the DNA is THE biological HISTORY book/code, not a book of revelation.

Altynbek

2007-01-18 16:27:20 · 3 answers · asked by Alt 1

I'm on Lab 3 Mitosis and Meiosis and I don't really understand it...like how does mitosis differ in pland and animal cells?? any help?? thanks!

2007-01-18 16:11:00 · 3 answers · asked by Anonymous

Why do you suppose there are usually equivalent numbers of males and females in most species?

Why would natural selection favor an even number of males and females? Why is this evidence that natural selection acts on individuals rather than populations?

2007-01-18 16:07:56 · 2 answers · asked by JoAnna 2

if the dad in the family is Aa and the mom is aa
they had a son in this family is aneuploid(trisomy 18)
in which parent did the error in meiosis occur?
at what stage of meiosis did it occur?

2007-01-18 16:03:08 · 2 answers · asked by smile 1

Peppered moths in London changed colors over times in order to blend in with their changing environments. This is evolution in action.

What happened with the Pepper moths? How & why did the moths change? How does this phenomenon illustrate Darwin's principles of evolution? Give at least 3 principles illustrated by this example & explain your reasoning.

2007-01-18 15:40:30 · 2 answers · asked by JoAnna 2

2007-01-18 15:33:46 · 6 answers · asked by shootthetarget92 1

2007-01-18 15:29:11 · 1 answers · asked by Anonymous

our appendix is basically useless to us, right? so i was wondering why we have one. has anyone heard or does anyone have any theories about what the use of the appendix was for early humans and if so, what are they?
we are learning about evolution in biology and i asked this question today and my teacher didn't know the answer...

2007-01-18 15:28:24 · 4 answers · asked by emily.grace 3

please can you help? im desperate...

2007-01-18 14:51:15 · 4 answers · asked by :) 2

if a litter resulting from the mating of two short tailed cats contains three kittens without tails, two with long tails and six with short tails, what would be the simplest way of explaining the inheritance of tail length in these cats. assume there is one gene for tail length, with two alleles: T and t
autosomal or x-linked

2007-01-18 14:47:50 · 2 answers · asked by smile 1

2007-01-18 14:45:59 · 10 answers · asked by Anonymous

2007-01-18 14:15:11 · 2 answers · asked by GwenFals 1

2007-01-18 14:11:03 · 4 answers · asked by saving_for_college 2

2007-01-18 13:43:57 · 2 answers · asked by Marco D 2

The ways and a brief description of each would be great <3

I need it for my biology class, and as of yet my search has been fruitless. PLEASE DON'T SAY GOOGLE IT!!!

2007-01-18 13:33:05 · 6 answers · asked by mo_c_mo33 3

What are one, or a few--safety procedures that should be followed when conducting an experiment that involves heating protein in a test tube containing water, an acid, and a digestive enzyme.

2007-01-18 13:07:40 · 3 answers · asked by Anonymous

How many pairs of electrons do the two oxygen atoms in an oxygen molecule share with each other? Explain your answer.

Thanks!

2007-01-18 13:05:18 · 1 answers · asked by football chick 6

2007-01-18 13:02:03 · 1 answers · asked by YL 1

I don't understand, help explain?!

Explain the phrase "only certain organisms can change solar energy into chemical energy"

I'm supposed to be sure to identify--
the type of nutrition carried out by these organisms
the process being carried out in this type of nutrition
the organelles present in the cells of these organisms that are directly involved in changing solar energy into chemical energy

Does photosynthesis count?!

2007-01-18 12:59:26 · 4 answers · asked by Anonymous

a. radius
b. circumference
c. height
d. diameter

2007-01-18 12:49:23 · 5 answers · asked by cervante02 1

2007-01-18 12:45:24 · 6 answers · asked by Lattie 1

2007-01-18 12:43:54 · 4 answers · asked by pete999 2

a. TT r^2
b. TT r
c. 2r
d. rd

2007-01-18 12:37:30 · 9 answers · asked by cervante02 1

any other info on them would be GREAT thanks

2007-01-18 12:19:54 · 1 answers · asked by taylovestokiohotel 1

How would you describe the color Green to a colorblind person?

2007-01-18 12:10:11 · 5 answers · asked by Anonymous

2007-01-18 12:10:00 · 11 answers · asked by estkijedsco 4

If vegetables become wilted, they can often be made crisp again by soaking them in water. However, they may lose a few nutrients during the process. Using the concept of diffusion and concentration, state why some nutrients would leave the plant cell?

And is it possible to determine whether it's a isotonic solution or hypertonic/hypotonic?

2007-01-18 11:50:09 · 1 answers · asked by Anonymous

A List Would Be Great!!

2007-01-18 11:49:09 · 4 answers · asked by cb09 1

2007-01-18 11:37:21 · 4 answers · asked by Yieba 2