Biology - December 2007

As in how does it affect humans?Body change,growth ect.

2007-12-30 15:41:24 · 14 answers · asked by Anonymous

Im completing my coursework on the effects of caffeine on the pulse rate. For the conclusion I want to explain the results I obtained.
1. Does anyone know the reason why females tend to have a higher resting pulse rate?
2. How / why does body size affect how fast and u react to caffeine and also how much of a change you show in the PR reading.
3. What else will affect how fast u react ?

2007-12-30 15:19:43 · 1 answers · asked by Inque 2

2007-12-30 15:17:13 · 5 answers · asked by live.mellon 1

2007-12-30 15:06:57 · 9 answers · asked by SANN 1

2007-12-30 14:43:04 · 2 answers · asked by Joey joe 1

because the Y chromosome is getting shorter and shorter? Or will the male lineage is going to be extinct at all?

2007-12-30 14:40:38 · 3 answers · asked by Travis 4

how would you explain the following so that a 5th grader can understand it?

1) The hardy-weinberg theorem; its criteria and a simple application

2) Factors that can cause evolution in a "stable" population

3) Microevolution: Genetic drift and natural selection

4) Darwinian Fitness and Relative Fitness

5) Selection: directional, diversifying, stabilizing, and natural

i know this is a long question, and i greatly appreciate anything you can give me. thank you

2007-12-30 14:11:12 · 2 answers · asked by Anonymous

A few ways that they are different would be great. Thanks!

2007-12-30 14:09:24 · 7 answers · asked by Anonymous

A technique called egg fusion involoves the union of one haploid egg cell with another. The zygote contains the full 2n chromosome number and is always a female.
What are the implications for society if this technique were to be used for humans?

2007-12-30 13:34:02 · 1 answers · asked by Anonymous

2007-12-30 12:05:01 · 2 answers · asked by Anonymous

bio question, can't find the definition of "fender" so i can't really answer the question.

2007-12-30 11:55:52 · 3 answers · asked by Mee 2

I think I understand how the brain knows if a sound is to your left or your right, simply because you have an ear either side of your head, and if one ear is picking up a greater intensity of sound then your brain knows the source of the sound is to that sound. But how does your brain know if a sound is directly in front of you or behind you? I thought of this while listening to a wonderful rendition of Beethoven's Ninth this evening at the Barbican! Thanks in advance.

2007-12-30 11:09:41 · 3 answers · asked by Will R 2

In your explanation, be sure to:
- identify the function of a valve in relation to the flow of blood
- identify two places in the circulatory system where valves are found
- identify one specific valve by name and describe its specific function

2007-12-30 10:58:24 · 7 answers · asked by Kevin G 2

2007-12-30 10:36:35 · 3 answers · asked by gabbyurgurl15 1

2007-12-30 09:24:30 · 6 answers · asked by Anonymous

I know there is evolution, but how is it possible? I heard whales once walked on land, but how did legs turn into flippers? And why is our appendix growing shorter? Why do we change and how does our bodies and children know how to change?

2007-12-30 08:51:33 · 19 answers · asked by Anonymous

(1) plasma, alveoli, proteins
(2) platelets, mucus, red blood cells
(3) phagocytes, platelets, proteins
(4) hemoglobin, capillaries, white blood cells

2007-12-30 08:06:28 · 3 answers · asked by Kevin G 2

2007-12-30 07:58:05 · 4 answers · asked by Anonymous

2007-12-30 07:02:53 · 1 answers · asked by i'm a miracle 2

2007-12-30 06:31:07 · 6 answers · asked by 88888888 2

Describe the path glucose takes as it enters the body from the outside environment and ends in the cell’s mitochondria.

2007-12-30 06:28:37 · 5 answers · asked by vanessa 2

2007-12-30 06:15:03 · 3 answers · asked by needalife 1

2007-12-30 06:13:04 · 14 answers · asked by Pain_of_Unhappiness2 3

2007-12-30 06:08:39 · 4 answers · asked by anat 1

Suppose the secretion of a certain hormone causes an increase in the concentration of substance X in the blood. What is the effect on the rate of hormone secretion if an abnormal condition causes the level of X in the blood to remain very low

2007-12-30 05:53:11 · 4 answers · asked by Anonymous

Specific scientists?

2007-12-30 05:50:28 · 5 answers · asked by Adina 2

Okay so i know my question is kinda unclear but please help!
I am writing a study - "who is to blame for obesity" as a homework assignment, part of it says -
"explain the process of respiration, metabolic rate and fat storage"
iv covered metabolic rate and fat storage, but i dont know what to write for resperation, i know what it is but how is it linked to metabolic rate and fat storage?
please help!

2007-12-30 05:00:14 · 2 answers · asked by sugarykisses 2

someone please summarize evolution to me in a non scientific laguage, please

2007-12-30 04:17:53 · 10 answers · asked by Jason p 1

Were there improvements made to the process using animals during the time of its use?

2007-12-30 03:45:24 · 1 answers · asked by Anonymous

2007-12-30 03:32:48 · 10 answers · asked by Anonymous