Biology - May 2007

this is in connection with the genus Corynebacterium. thanks :)

2007-05-03 22:45:57 · 4 answers · asked by help_with_physics 1

2007-05-03 22:07:52 · 1 answers · asked by bhiboy 1

why is it important to do environmental sampling from time to time (this is with regards to isolation of bacteria in the environment)

2007-05-03 22:05:05 · 2 answers · asked by bhiboy 1

how do i find out without testing every living thing :(

2007-05-03 17:53:44 · 3 answers · asked by little.clown 2

2007-05-03 17:16:50 · 10 answers · asked by Anonymous

What is the genotype of the mother?
What is the genotype of the fatther?
Using a Punnett square determine the population of the F1 generation.
What percentage of their boys will be colorblind?
What percentage of their girls will be colorblind?

Please simplify as best as you can on your answer, so I can understand it, I'm just learning Biology.
Thank you

2007-05-03 16:53:48 · 5 answers · asked by Kerri L B 1

2007-05-03 16:52:21 · 2 answers · asked by Anonymous

A friend mentioned something about whales and gills, to which I said "No, they're mammals." He said that they use them to filter the water for debris and food. I said that whales with baleen use that to get plankton and other whales don't need to filter as they eat large prey. He still insists that whales have some kind of "gills". Can I tell him he's lost it?

2007-05-03 16:41:06 · 9 answers · asked by Mr. MR 2

a)are found only in the guard cells
b)are concentrated in the stomata
c)are concentrated in a portion of the leaf the stroma
d)are concentrated in the mesophyll cells
e)are found in the mitochondria matrix

2007-05-03 15:45:04 · 3 answers · asked by rose 1

2007-05-03 15:44:10 · 4 answers · asked by Anonymous

There was a little thing we did in one of my classes the other day that guys fell forward and girls could just stand up (I know it doesn't make much sense, but I don't want to explain the whole experiment)

Anywho, I tried explaining it (just as my biology teacher did to me) that a male's center of gravity is in their shoulders (or upper body) versus a female's center of gravity being in the hips (or lower-mid body). I double checked with my bio teacher and I was correct. But the girl insists I am wrong..(the one I was arguing with)...am I correct or no?

2007-05-03 15:18:55 · 5 answers · asked by Axis 1

This may seem weird, but it's a random thought I had today.
A woman's DNA is inserted into an egg that is not her own. It is then fertilized by an unknown male donor and the resulting embryo is carried to term by a surrogate.
Would the resulting child be considered a clone or offspring?

2007-05-03 15:07:46 · 1 answers · asked by Anonymous

Serious answers only please, I know they give off such an odor when you start killing them so I was wondering if I injested any ants if that might be making me feel sick. I know it is stupid, you don't need to remind me :)

2007-05-03 15:06:34 · 13 answers · asked by PrincessQuiteAlot 2

How is meiosis beneficial to the evolution of a species by natural selection?

2007-05-03 15:03:21 · 2 answers · asked by Anonymous

Are no two penises alike? I'm genuinely curious from an anatomical perspective.

2007-05-03 15:00:38 · 4 answers · asked by Anonymous

a)mitochondria oer solar energy to chemical energy, whereas chloroplats convertone form of chemical energy to another
b)mitochondria contain internal structures called cristae while chloroplasts contain thylakoids is stacks called grana
c)mitochondria contain membrane flods called grana, whereas chloroplasts contain dislike vesicles in stacks called cristea
d)mitochondria are not found in plants, and chloroplasts are not found in animals
e) mitochondria produce glucose, whereas chloroplasts break glucose down

2007-05-03 15:00:23 · 5 answers · asked by rose 1

Can someone help me on this question please, i do not understand a word it is saying.

Mutations can be harmful,helpful, or neutral. Natural selection acts on these mutations and selects for or against the mutation. Thus, organisms with a mutation that is selected for will have their fitness increased, while organisms with mutations that are selected against will have their fitness decreased.
What is natural selection acting on to drive this process? The process acts on the ?

1. Phenotype, which is an expression of the genotype
2.Genotype directly, and therefore not the phenotype
3. Correct allele combinations so that the species may prosper into the future
4. Genotype and, by extension acts on the genotype
5. DNA directly

2007-05-03 14:57:28 · 2 answers · asked by Silver Scythe 1

What is the genotype of the mother?
What is the genotype of the father?
Using a Punnett square, determine the population of the F1 generation.
What percentage of their boys will be colorblind?
What percentage of their girls will be colorblind?

2007-05-03 14:51:46 · 3 answers · asked by Kerri L B 1

in the electron transport chain that is part of cellular respiration, electrons are passed from one electron transport protein to another and, at the end, are finally accepted by?

a)oxygen
b)carbon dioxide
c)water
d)ADP
e)ATP

2007-05-03 14:51:24 · 5 answers · asked by rose 1

2007-05-03 14:27:54 · 6 answers · asked by Leslee S 1

What are those really little white bumps that are around your nipple.. on the pink part.. and why do some people have them and some people dont?
..
so very weird.. =)

2007-05-03 13:11:37 · 5 answers · asked by Anonymous

Is it possible for a complex organism to evolve into a less complex organism? Like if an organism randomly devoloped some sort of feature that was less complex that aided in the organsims chance of survival. Suppose that somehow almost everyone on earth died of a horrible disease or nuclear war, and the only remaining humans lived in isolated regions of africa where the dominant environments consisted of thick forests. In this scenario, would it be possible for humans to evolve into an organism that closely resembles the modern chimpanzee or gorilla?

2007-05-03 13:10:56 · 8 answers · asked by Diagoras 4

2007-05-03 13:05:10 · 3 answers · asked by gman 1

2007-05-03 13:04:15 · 1 answers · asked by gman 1

I want to grow some bugs

2007-05-03 12:58:16 · 2 answers · asked by Thurston Howell III 4

What is the best medium to use to find out if salmonella is present in my food sample.?
I have small circular white colonies in my culture but I want to find out if any salmonella is present in there. Can anyone please suggest any biochemical test or any specific medium to subculture on. Thanks for your help.

2007-05-03 12:49:29 · 4 answers · asked by Anonymous

OKay! For my AP Biology class, we have to make up an experiment for an inquiry project. Mine was studying how much bacteria grew after being cleaned with brand name and generic brand cleaning products.

We did our 1st set of testing the other day (Tuesday) and today we examined it.

The bacteria or unknown growing bacteria of culture we took

it looks like

lots of small white fuzzy little colonies of bacteria or I have no idea what.

I have been trying to figure out what the bacteria is by looking at it.

Anyone have any ideas what the bacterica or culture could be. I have been looking on line fore a few hours nows and have gotten not so far.

So I would like peoples ideas on what it could be or if you know a good site I can look at!

Thanks!

2007-05-03 11:43:43 · 5 answers · asked by kenshinandkaoru024 2

Given all we know about the binary code found in DNA, the growing body of evidence for intelligent design, and the almost total lack of transitory fossils, I believe he would..what do you think?

2007-05-03 11:30:42 · 14 answers · asked by quantum saphire 2

Here are a few ?'s I really dont geton my HW. Thanks if you can help me.

Why is mitosis a form of asexual reproduction?

What are three types of asexual reproduction?

Why are skin cells undergoing mitisi continuoulsy?

What types of cells undergoing mitosis continuosly?

Thanks so much!

2007-05-03 11:03:33 · 5 answers · asked by Anonymous

2007-05-03 10:52:12 · 4 answers · asked by Gaby 1