Biology - October 2007

The probability of beneficial mutations occurring simultaneously in multiple chromosomes of a single cell is extremely low. The probability of the same mutations occurring simultaneously in all cells of a multi-cell organism, is even lower. Needless to say, such random beneficial mutations have never been observed in the lab or in nature. To compensate for the low probability, biologists tend to take the approach of "given enough time it might happen." That's about as convincing as saying that given enough time, a monkey with a typewriter will produce all the writings of Shakespeare. With this premise, biologists have developed various models which yield "millions of years" as the time necessary for such "evolutionary mutations" to occur. Then, once such a time length has been calculated, we find in biology textbooks statements like: "Humans and monkeys evolved from a common ancestor 3 million years ago", as if this was a well established scientific fact. Where is intellectual honesty?

2007-10-25 03:01:35 · 7 answers · asked by brandlet 2

I know that snakes can, what about other animals?

2007-10-25 02:59:26 · 3 answers · asked by Anonymous

2007-10-25 02:45:15 · 6 answers · asked by Anonymous

what is the only thing that can be differentiated between the twins?

think.....think....oh yeah..don't hit that search option.

2007-10-25 02:05:38 · 11 answers · asked by SIMONE 5

And list just couple of reasons for the use of energy in a system that is living.

2007-10-25 01:52:27 · 3 answers · asked by Gianfi 1

Exactly how many Sences are there and what do they do?
(eg. Tough, hear e.c.t) i just know there are more than 6

Thanx ^-^

2007-10-25 01:12:33 · 3 answers · asked by Anonymous

The _______ kingdom of the six-kingdom classification system includes a great variety of plant-like, animal-like, and fungus-like eukaryotic organisms.
algae
protist
protozoa
sporozoa

2007-10-25 00:47:32 · 4 answers · asked by Anonymous

2007-10-24 22:16:56 · 7 answers · asked by Justin H 7

2007-10-24 22:15:10 · 6 answers · asked by janice 1

Is there a scientific term for the dark outer ring found around some irises?

Sorry if this question is not in the right category; I wasn't sure where to put it.

2007-10-24 18:58:41 · 7 answers · asked by lickitysplit 4

2007-10-24 18:57:00 · 3 answers · asked by bob s 1

I'm doing a report about WHY intelligent design should be TAUGHT IN PUBLIC SCHOOLS.

I personally think that it should be taught because Science is there to DISPROVE theories.
Studying ID would disprove "Evolution".

However, I could care less if you believe in it or not as I am not here to argue whether or not it is true. I'm asking why it should be taught in public schools.

So far I have:
1. Natural Selection vs. Evolution
2. The Time that it took God to create the world
-In the Bible it states that 1 day meant 1,000 years and 1 second of God took x amount of years.

Please help!

Thanks!

2007-10-24 18:54:27 · 13 answers · asked by Tom 2

besides insticts....

2007-10-24 16:55:51 · 3 answers · asked by Anonymous

2007-10-24 16:46:47 · 2 answers · asked by Anonymous

On my biology homework, one of the questions state, "Account for the movement of liquids through xylem cells." There is nothing that leads up to the question or that could help me out. I would really appreciate it if somebody would answer this for me or at least explain the question in different words. Thank-you.

2007-10-24 16:14:12 · 5 answers · asked by Exodus 2

For example, a frog.

2007-10-24 16:13:01 · 3 answers · asked by Anonymous

I know high temperatures cause denaturation and all that proverbial jazz.

2007-10-24 16:06:25 · 5 answers · asked by robofdeath 2

2007-10-24 15:55:03 · 2 answers · asked by azngurl0088 1

2007-10-24 15:28:23 · 1 answers · asked by azngurl0088 1

2007-10-24 15:27:01 · 5 answers · asked by azngurl0088 1

Gram-positive bacteria do not undergo binary fission.

2007-10-24 15:18:55 · 4 answers · asked by ry ry 3

Photosynthetic organisms are autotrophs.

2007-10-24 15:16:39 · 3 answers · asked by ry ry 3

During the process of bacterial conjugation, one bacterial cell will pass copies of all of its DNA to another bacterial cell.

2007-10-24 15:16:16 · 1 answers · asked by ry ry 3

All bacteria possess a capsule, ribosomes, and DNA.

2007-10-24 15:15:53 · 1 answers · asked by ry ry 3

and where does cell come from?
how do cells live in living things?
why do living things have cells?

thanks for answering;)
have a nice day;D

2007-10-24 14:55:18 · 2 answers · asked by TeeTee 1

if yes- where?

2007-10-24 14:48:10 · 3 answers · asked by me. 1

2007-10-24 14:46:42 · 5 answers · asked by Jake 1

2007-10-24 14:41:01 · 3 answers · asked by John G 1

2007-10-24 14:19:19 · 6 answers · asked by yagrlla 1

what does it mean to be "selective" and what does it mean to be "permeate?"

2007-10-24 13:56:57 · 2 answers · asked by sean_l 2