Biology - April 2007

Why is it that, if you have bad eye sight, squinting your eyes makes things come more in focus?

2007-04-18 21:51:19 · 9 answers · asked by Erik M 1

1. what is the definition of epidemiology?
2.what is the different between a virus and bacterium?
3.what is the most common way to fight bacterial infection?
4 what is the most common way to fight viral infection?

2007-04-18 21:31:13 · 2 answers · asked by Anonymous

Understanding that the human brain is made up of "supplementary" layers of neural activity, i.e. our brains evolved from a primitive vertebrate, can we stimulate the process of evolution of the brain? How?

2007-04-18 21:10:35 · 9 answers · asked by Andrei C 1

i would like to know for example the eye of animals are similar to human or different from each and to what extent.or any other organ.thankyou very much if explain for me

2007-04-18 20:35:15 · 3 answers · asked by ardavan 2

Explain how color vision works; that is, how are we able to perceive color, what neural processing happens that enables us to experience the sensation of color?

2007-04-18 18:58:28 · 3 answers · asked by Mozart 2

Describe in detail the path of the signal from the two eyes to the primary visual cortex areas in the left and right hemispheres?

2007-04-18 18:57:38 · 1 answers · asked by Mozart 2

???[ they mean a tadpole]

2007-04-18 18:50:44 · 1 answers · asked by Anonymous

2007-04-18 18:14:11 · 10 answers · asked by Anonymous

2007-04-18 17:29:50 · 5 answers · asked by Susie 6

I don't want the answer just how to do it. I don't get it.

The question is this:
Determine the equation of the line that passes through J(5,5) and is:

a) parallel to the line 3x + 4y = -16
b) perpendicular to the line 5x + 2y = 10

How am I supposed to this?

2007-04-18 16:44:57 · 5 answers · asked by Anonymous

Explain the role of transport proteins in the transmission of an action potential up to and across a synapse. Explain how the neurotransmitter is released and detected to continue the action potential in the postsynaptic cell.

2007-04-18 16:00:01 · 1 answers · asked by Nicki M 1

2007-04-18 15:48:55 · 1 answers · asked by Destiny 1

2007-04-18 15:40:35 · 7 answers · asked by drdon 1

some things i need to kno about Chondrichthyes for science pls. thanx!!!

1. Asexual or sexual reproduction?

2. skeleton/muscles?

3. circulatory systems (veins, hearts, lungs)

4. digestion/excretion

2007-04-18 15:10:33 · 1 answers · asked by Anonymous

2007-04-18 15:09:27 · 7 answers · asked by Anonymous

What are the only ways u can stunt ur growth?

what are ways and signs that indicate stunted growth?

Can lifting heavy things during school hours affect ur growth, eg ur school bag, sport bag, guitar and amplifier during school time?

Can scoliosis stunt growth?

Can u recover from a growth plate fracture without any treatment?

Can a trauma (human punch) in backbone, or in the elbow or in the knee affect the growh plates so u'd eventually stunted ur growth?

What are the chances of breaking growth plates?

Can sports REALLY help ur body to grow better?

Can free weighting affect growth?

Can lifting something really heavy for a very short time affect ur growth?

2007-04-18 15:05:41 · 2 answers · asked by David M 1

2007-04-18 14:56:21 · 1 answers · asked by Anonymous

let's say in the beginning my restriction enzyme cuts between G-A and I find my RFLP pattern(restriction fragment length polymorphisms)

Then let's say I decide my restriction enzyme cuts at T-T.
What kind of effect will that have? will it change my RFLP or what because I don't seem to get it

2007-04-18 14:23:28 · 1 answers · asked by mocool13 2

A. DNA ? RNA
B. DNA ? DNA
C. DNA ? protein
D. RNA ? protein

2007-04-18 14:22:31 · 3 answers · asked by Anonymous

2007-04-18 14:19:20 · 3 answers · asked by Anonymous

I read and article about stem cells and there's this section that I don't really understand.

"Therefore, in order to develop such treatments scientists are intensively studying the fundamental properties of stem cells, which include:

1. determining precisely how stem cells remain unspecialized and self renewing for many years; and
2. identifying the signals that cause stem cells to become specialized cells. "

So what unspecialized and specialized cells mean? And if you can, can you also explain briefly what stem cells are and capable of?
Thank you. :]

2007-04-18 14:17:52 · 8 answers · asked by happybunny 2

let's say in the beginning my restriction enzyme cuts between G-A and I find my RFLP pattern(restriction fragment length polymorphisms)

Then let's say I decide my restriction enzyme cuts at T-T.
What kind of effect will that have? will it change my RFLP or what because I don't seem to get it

2007-04-18 14:08:45 · 1 answers · asked by mocool13 2

What other factors are considered before using the antimicrobial agent in vivo?

2007-04-18 13:14:21 · 2 answers · asked by BeachBum 1

whiptail lizards are extict but males are not the the female but compared to the male or female human males have a large gene and a smaller one. but a femlae has 2 genes large and the second large. scientists said the gene somehow shriked and also, to resume shriking, so another 125,000 years in the futute all male humans will be extinct; true or false. I heard it on the animal planet the most extreme battle of the sexes

2007-04-18 13:07:43 · 1 answers · asked by Brian 1

2007-04-18 13:01:39 · 3 answers · asked by Nicole C 1

question 12: what types of cells in your body are no longer undergoing mitosis

2007-04-18 12:58:20 · 4 answers · asked by Anonymous

2007-04-18 12:49:46 · 4 answers · asked by Nicole C 1

Can you give me some similarities between Mitosis and Mieosis? Also some differences.....

thanks

2007-04-18 12:47:32 · 4 answers · asked by Gabbs 3

can someone describe the ionic basis of electrical activity in the heart???

thanx

2007-04-18 12:45:11 · 2 answers · asked by Anonymous

2007-04-18 12:38:28 · 2 answers · asked by Jeff L. 2