Biology - April 2007

I understand that they want the students to understand how the body works, but they don't have to kill hundreds of animals every year for that.
If you go to http://www.froguts.com/ there is a great computer program where you can virtually dissect animals, including frogs and pigs (the most common high school dissection animals). This doesn't harm any animals and shows you the same stuff the real thing would!
Why don't all schools use this? It would cost less than buying new animals every year.

2007-04-21 20:32:30 · 14 answers · asked by Samantha 2

Laugh out loud and then think about it carefully, because I don't think it is possible.

2007-04-21 18:22:27 · 15 answers · asked by The Nutty Professor 1

light gives us energy,,
thus it can be classified as a nutrient,,as other nutrients also give us energy,,

but,,
light is used as a catalyst in many reactions,,
which(the reaction) leads to other nutrients,,
like photosynthesis leads to vitamin D,,and uses light as a catalyst,,

so,,what do u say abt it??

2007-04-21 17:40:49 · 11 answers · asked by gunkedar 2

2007-04-21 17:31:53 · 12 answers · asked by app's 1

Does scientiest have any premonition?

2007-04-21 17:25:56 · 14 answers · asked by Bonga 1

Once the blood leaves the Bowman's capsule it has already been filtered...Why do the tubules reabsorb the filtered fluid?

2007-04-21 17:21:09 · 8 answers · asked by kuzya 1

chromosomes form tetrads during....

A.propahse I of meiosos
B.metapahse I of meiosis
C.interphase
D.anaphase II of meiosis

what is it?

2007-04-21 16:23:16 · 9 answers · asked by The REBELution! 3

2007-04-21 16:21:55 · 4 answers · asked by Timothy L 1

2007-04-21 16:11:42 · 3 answers · asked by bianki 1

Then does it:
a. send out filaments
b. slowly break down
c. turn into blood cells
d. start producing stem cells

Please help!

2007-04-21 15:49:28 · 2 answers · asked by Imagine, Its Contagious! 3

reduce this problem?

2007-04-21 15:48:18 · 1 answers · asked by yams 1

Scientists have dug up the remains of animals that lived 75 million years ago.

They have yet to find remains of people from that period.

People exist now.

At what point were we "created" in the last ten thousand years?

I'm not trying to make anyone feel stupid, but I just want to know how creationists deal with each of these facts. Do you dispute some of these as "facts", and if so which ones and why?

Please keep the bibles closed on this one, folks.

Thanks!

2007-04-21 15:43:52 · 9 answers · asked by Fourth Line 5

2007-04-21 15:31:50 · 2 answers · asked by ploikam 1

They seem to change depending on my mood and how I feel, i'm not sure though.

2007-04-21 15:25:10 · 6 answers · asked by fulhamfc04 1

42 yr old Dan can clearly read the highway signs as she drives but for the first time in his life he is having trouble reading the words and numbers in the phone book . Dan most likely has which vision problem ?

a.myopia
b.hyperopia
c.astigmatism
d.presbyopia

could the answer be presbyopia since it happened for the first time in his life ?

2007-04-21 15:11:28 · 3 answers · asked by spyhunter 2

If the F1 generation of the cross between true-breeding plants with yellow (Y), wrinkled (s) seeds and green (y), smooth (S) seeds are crossed, what are genotypes of the offspring?

OUT OF 16
for example: 1/16 that it would be yyss

give probabilty for each combination of genes out of 16

2007-04-21 15:06:59 · 3 answers · asked by sugardaddy8815 1

i have one pupil bigger than the other.. is this a problem?

2007-04-21 14:42:00 · 10 answers · asked by fulhamfc04 1

2007-04-21 14:41:32 · 2 answers · asked by bianki 1

a) Complement fixation leads to death of Gram+ cells after formation of a membrane attack complex

b) All pathways require prior processing of antigen by macrophages

c) C1 Components binds to the constant region of some immunoglobulins, leading eventually to C3b expression

2007-04-21 14:38:34 · 5 answers · asked by Anonymous

2007-04-21 14:32:32 · 4 answers · asked by bianki 1

2007-04-21 14:11:18 · 4 answers · asked by CollegeStudent 1

2. Name 4 cellular transport processes?

4. Name three molecules that are proteins?

9. List the steps for the production of a protein (starting with the opening of the DNA molecule)

13. If a DNA code on one side is AGTCAT, what is the code for the mRNA molecule?

14.If a DNA code on one side is AGTCAT, what is the code for the tRNA molecule?

15.what is the function of the ER?

thanks so much, one semester passes and I forget most of these things ><

2007-04-21 12:18:30 · 3 answers · asked by Anonymous

In one-celled organisms and plants, excess water or toxic substances can be contained in _________. Specialized types of these organelles, called _________ _________, can expel these substances from the cell. In the hydra, metabolic waste products are discharged directly into the _________. Gases are also exchanged between the cells and the ___________.

In the earthworm, water , mineral salts and urea are filterd out of the body fluids into the __________, and are then excreted. There are __________ nephridia in most of the body segmnts. Each nephridium does the same job as the ___________ in a human. The sites ina grasshopper in which water, mineral salts and uric acid accumulate are called __________. These tubules remove cell wastes from the __________ and pass them into the ___________. From here they are eliminated from the body along with the __________ wastes.

2007-04-21 11:56:42 · 5 answers · asked by Anonymous

2007-04-21 11:52:20 · 3 answers · asked by Anonymous

2007-04-21 11:47:03 · 2 answers · asked by Anonymous

(two people)

2007-04-21 11:43:26 · 5 answers · asked by Anonymous

2007-04-21 11:13:20 · 6 answers · asked by Anonymous

If Evolution does exists and make sense... Have we stopped evoling?

2007-04-21 10:42:35 · 10 answers · asked by Anonymous

2007-04-21 10:20:59 · 17 answers · asked by Anonymous

What are the building blocks of RNA called and what do they look like?

2007-04-21 09:52:51 · 0 answers · asked by Mary M 1