Biology - November 2007

I know 'living' is sometimes hard to define but does science have any explanations?

I am supposing it was some microscopic algae or bacteria...if so, is there any fossil record of this species, or is it still in existence?

Thanks!

2007-11-06 08:33:49 · 25 answers · asked by Anonymous

Not including us...I'm guessing plankton, if any?

2007-11-06 08:32:16 · 10 answers · asked by Anonymous

2007-11-06 08:32:15 · 4 answers · asked by Anonymous

2007-11-06 08:27:23 · 6 answers · asked by anniken s 1

2007-11-06 08:25:47 · 3 answers · asked by Anonymous

A) are a type of nerve cell.
B) release their secretions onto an epithelial surface.
C) release their secretions directly into body fluids.
D) contain very few vesicles.
E) are modified connective tissue cells.

2007-11-06 08:13:29 · 6 answers · asked by Doc-T 1

2007-11-06 08:06:25 · 4 answers · asked by Anonymous

2007-11-06 08:04:51 · 4 answers · asked by Anonymous

What are the characteristics that make or allow enzymes to do their job?

Under what condition or changes do enzymes not function?

I have a lab on Thursday, and I need to find out how to test for a enzyme that won't function in its regular environment. Any ideas? Any at all!!:)

Thanks!

2007-11-06 07:34:24 · 2 answers · asked by little_wieks 1

Instead of taking a swab from inside your own mouth but instead from inside your cat's mouth and sent it off for the results. What would be the outcome, would anything come back?
Would the company be shocked at what they found and send round big white vans with people in bio-suits like they did in ET to take you away?

2007-11-06 06:25:58 · 4 answers · asked by Anonymous

This is the whole question.

What are some difficulties faced by a cell as it grows larger?

Can someone explain me thorougly? and please if u can include analogy to help me understand better. Thanks a lot

2007-11-06 06:06:55 · 4 answers · asked by BollyStar 1

according to this article

http://encarta.msn.com/encyclopedia_761569048/Skin.html

cancers of which kind of epidermis cells are more dangerous? Why?

please help? i've been looking for this answer for 2 days! >_<

2007-11-06 05:49:38 · 2 answers · asked by sand_illusions 4

2007-11-06 05:49:13 · 4 answers · asked by marti 1

How exercise affects heart rate and breathing?

Thank you!!

2007-11-06 05:45:32 · 2 answers · asked by Emma 1

2007-11-06 05:27:24 · 4 answers · asked by italianrae1986 1

If a trait is adaptive can you please explain why and give an example

2007-11-06 05:26:33 · 2 answers · asked by Curious 2

In animals, meiosis results directly in gamete production, while in plants meiospores are produced. Where do the gametes come from in the life cycle of a plant?

2007-11-06 05:24:15 · 1 answers · asked by Tony 1

Please anwser! I'll award with 10 points (:

2007-11-06 05:16:25 · 3 answers · asked by ERiKA ! 3

Refering to males.

2007-11-06 05:04:36 · 1 answers · asked by xyz 1

explain how the net charge on a molecule an important factor in electrophoresis in results in related to identifing a suspect in a crime using a sample of DNA?

2007-11-06 04:42:58 · 2 answers · asked by Anonymous

On mybio lab i cant figure out this question, please help. " When a person in the hospital is given fluid intravenously(an I.V), the fluid is typically saline(salt) solution with about the sam water concentration as human body tissues. Explain how the use of distilled water in place if this saline solution would expected to upset the patient's homeostasis. Your answer should refer to the process of diffusion." PLEASE HELP!!

2007-11-06 04:38:56 · 4 answers · asked by Anonymous

4 bioligy

2007-11-06 04:20:37 · 4 answers · asked by Anonymous

2007-11-06 04:20:12 · 2 answers · asked by annacaygob 1

Fossil intermediaries have been found between fishes and amphibians and between reptiles and birds. In other words,

1. existing fossil records do support natural selection.
2. existing fossil records do not support natural selection.
3. existing fossil records support evolution.
4. existing fossil records do not support evolution.

What plays a big role in the process of speciation?

1. convergence
2. divergence
3. both a and b
4. none of the above

According to Darwin,

1. fossils cannot help us determine how species evolved.
2. there is overwhelming evidence from fossils that living species did not evolve from organisms that are extinct.
3. there is overwhelming evidence from fossils that many of today's living species have evolved from organisms that are extinct.
4. both a and b.

2007-11-06 04:12:49 · 13 answers · asked by Anonymous

2007-11-06 03:45:52 · 4 answers · asked by Princess 2

2007-11-06 03:24:49 · 15 answers · asked by mikl0vl 2

What Credentials are needed?
Special skills?
What would your job title be?
Projected need for this vocation?
Average salary?
-i've only been able to find info on the bioluminescent creatures.

2007-11-06 03:00:40 · 1 answers · asked by Anonymous

Would you agree that while microevolution can be seen and proven that macroevolution is based on circumstantial evidence. It cannot be directly proven or seen?

2007-11-06 02:22:16 · 9 answers · asked by Bible warrior 5

2007-11-06 01:36:19 · 15 answers · asked by ..$$ skunk..$$ 2

Is there an organ called bladder. Is skin the largest organ. What is the smallest organ

2007-11-05 20:15:11 · 10 answers · asked by Anonymous