Biology - March 2007

What are the three main problems that occur due to the misuse of antibiotics?

How many Haleakala silversword plants are left? Why?

A population of grasshoppers in a Missouri prairie has two color phenotypes, green and brown. Typically, the prairie receives adequate water to maintain healthy, green grass. Assume a bird that eats grasshoppers moves into the prairie. How will this affect the natural selection of the grasshoppers? How might this change in a drought year?

Who is responsible for antibiotic resistance? Why

What substance does your body produce to block the pain caused by eating chili peppers?

2007-03-09 01:29:19 · 1 answers · asked by shane200388 1

Maybe this is a naive question...but I was wondering.

People say to expecting parents, it'll decide when it's ready to be born... but does it?

Is there something in the baby itself that cues the birth process, or is it the woman's bady that says, "enough of THIS".

If you think about a chicken in the egg, the SHELL doesn't say "crack me now". It's somrthing in the chick that says it's time to start cracking.

So what about human (and mammal) births? The female body, or the baby?

2007-03-09 00:52:09 · 4 answers · asked by Mc K 2

What do would be the best way to get rid of a human body- without any law agencies figuring it out... i've always though 'incineration' would be the best method.

2007-03-09 00:21:25 · 10 answers · asked by Anonymous

pyrophosphate bonds, phosphodiester bonds, polymerization, on none of the three mentioned here.

2007-03-09 00:16:28 · 3 answers · asked by Anonymous

ty

2007-03-09 00:14:10 · 2 answers · asked by Anonymous

i need the answer as soon as possible!!thanks!!

2007-03-08 23:33:11 · 6 answers · asked by gean 1

If so, is it a good idea to have some before a sports game?

2007-03-08 23:12:48 · 4 answers · asked by Link 4

I know all about synapses and neurotransmitters and the likes, but why is it necessary to have that gap? Wouldn't it be faster to join the neurons together to pass the impulse straight down them all?

2007-03-08 23:11:56 · 4 answers · asked by Link 4

why do people assume that there has to be oxygen and water to support life on other planets? humans may need these things but maybe "other" life forms don't.

2007-03-08 23:08:12 · 13 answers · asked by numpty 1

why do people assume that there has to be oxygen and water to support life on other planets? humans may need these things but maybe "other" life forms don't.

2007-03-08 23:07:44 · 6 answers · asked by numpty 1

why do people assume that there has to be oxygen and water to support life on other planets? humans may need these things but maybe "other" life forms don't.

2007-03-08 23:05:55 · 6 answers · asked by numpty 1

2007-03-08 22:56:10 · 8 answers · asked by Gaurav K 1

Correlate the SNS with the ANS. How do the two different branches of the nervous system interrelate?

Any info given helps.. thank you

2007-03-08 22:38:46 · 3 answers · asked by skoolgirl 1

2007-03-08 22:29:48 · 9 answers · asked by StingRay 2

2007-03-08 22:28:08 · 3 answers · asked by Ting 4

2007-03-08 22:07:36 · 15 answers · asked by nate 1

How long would it take for an isolated community of people to mutate far enough to become a new species? 1000 years? 10000 year? 1 million years?

(I genuinely have no idea how long speciation takes, this is a serious question)

2007-03-08 21:41:18 · 5 answers · asked by soliwake 1

The material used are 5g/L albumin, casein, gelatine, and peptone..Three metals were used that are CuSO4, lead acetate, and mercury nitrate..i need to do the lab report..especially for introduction snd discussion.please...

2007-03-08 20:51:04 · 0 answers · asked by emiro higure 1

2007-03-08 20:39:36 · 26 answers · asked by Anonymous

How does it break it down? Does it have the protein "Catalase"

2007-03-08 19:37:35 · 1 answers · asked by Xeel 1

i need to know three type of blood cells and what each one of them what is doing ?????????

2007-03-08 19:01:03 · 7 answers · asked by katy h 1

When running an agarose gel with wells containing DNA and restriction enzymes, why is it that sometimes a few bands on the gel are higher than the index marker?

Such was the case for my control DNA well (no RE) and also for another well containing DNA and the restriction enzyme Pst I.

Please help.

2007-03-08 18:48:45 · 3 answers · asked by Anonymous

2007-03-08 18:04:00 · 5 answers · asked by lapato 2

1. Imagine you are a scientist trying to determine the evolutionary relationship between 2 different groups of snakes. The first group of snakes lives in North America, the second lives in Africs. The 2 groups are very structurally similar, although North American snakes are brown and white and the African snakes are green. The two groups of snakes have nearly identical chromosome structures. Do you think these 2 groups of snakes share a common ancestor? Why or why not?

2. Would you classify the 2 groups of snakes as the same species? Why or why not?

2007-03-08 17:30:43 · 2 answers · asked by confidential 2

dna strand has a 5' and 3' end whereas a Rna strand doesn't.


dna is double stranded, Rna is single stranded.


dna has thymine, RNA has uracil.


dna contains deoxyribose, RNA contains ribose.

2007-03-08 16:47:56 · 3 answers · asked by Anonymous

1. Wasps are multicellular consumers with complex organ systems. To what kingdom do they belong?

2. Amoebas are unicellular consumers that lack complex organ systems and are found in damp enviorments. To what kingdom do they belong?

2007-03-08 16:43:44 · 3 answers · asked by confidential 2

exons, introns, nucleus, or none of the three mentioned.



I know it is the ribosomes but unfamiliar with exons and introns.

2007-03-08 16:42:28 · 2 answers · asked by whatsinaname07 1

We have not found ALL the links. There are many gaps. So why do you continue to base your beliefs on evolution?

2007-03-08 16:36:45 · 11 answers · asked by Anonymous

a medulla and a hypothalamos

2007-03-08 16:26:49 · 1 answers · asked by Anonymous

I thought it was replication.

2007-03-08 15:41:55 · 3 answers · asked by whatsinaname07 1