Biology - January 2007

I don't get why you can't use Koch's postulates if the suspected pathogen causes a disease only in humans.... is it that it needs to be tested in multiple organisms.?? idk confused help please

2007-01-02 11:35:26 · 3 answers · asked by Joe S 1

2007-01-02 11:33:36 · 6 answers · asked by Anonymous

2007-01-02 11:29:18 · 1 answers · asked by 1234 1

Conclusion: Throughout the fetal pig lab, my group was able to identify important external structures of the fetal pig, major structures associated with a fetal pig's digestive, respiratory, circulatory, urogenital, and nervous system. After we finished identifying the organs one by one, we compared the functions of certain organs in a fetal mammal with those of human organs throughout answering questions.

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this is a part of my fetal pig lab conclusion.
what else should i put more?

2007-01-02 11:17:58 · 9 answers · asked by heyheyhey 2

2007-01-02 11:16:18 · 3 answers · asked by Anonymous

I need to find a source that actually states that blacks came from monkeys. I remember hearing in high school, that Darwin had documented this, but I can't seem to find it online. I have found many things that say all of man has come from monkeys, but I need to find something that says only blacks did. Thanks a bunch.

2007-01-02 10:56:47 · 5 answers · asked by Andy 3

make it easy to understand please

2007-01-02 10:44:23 · 3 answers · asked by Ask&learn 3

cell membrane,
nucleus,
nuclear membrane,
vacuole,
free ribosomes,
chromosomes,
cytoplasm,
mitochondria,
lysosome

please answer because i dont have a science book 2 help me and i am very bad w/ the internet

2007-01-02 10:34:30 · 4 answers · asked by Anonymous

Humans oxidize gluecose in the presence of oxygen. Foreach mole of glucose oxidized, about 686kcal of energy (E) is released. A calorie is the amount of E required to raisethe temperature of 1g of water by 1 degree C; 686kcal=686,000cal. The avg human requires 2,000kcal of E per day, which is equivalent to about 3 glucose mol per day. Given this, why dont we combust?

2007-01-02 10:32:54 · 10 answers · asked by Naka P 1

Hi,

I would like to know if anyone knows of a source where I could find out about the weight, size, and mass of the gastrocnemius muscle in various species of animals. Or even other leg muscles would be ok too.

Thanks,

Mike

2007-01-02 10:21:59 · 2 answers · asked by ruffstockworld 2

well i just wanted to know what you would use as a control, and why. and if there is no control why is that. thx--your help is greatly appreaciated--gotta stay up all night and get this coursework done. So sue me, christmas and new year had me occupied...^_~

2007-01-02 10:11:44 · 2 answers · asked by . 1

can you please help me design an experiment that investigates the effect of temperature on the rate of anaerobic respiration?

we must use a a glass apparatus that volumetrically collects gasses emitted from liquid solution.

i'm not trying to get someone to do my homework for me, we're allowed to get help on this part. doing the actual experiment is the big thing, but i'm not even sure how to go about designing it.

any help is greatly appreciated :)

2007-01-02 10:07:38 · 3 answers · asked by music123 1

2007-01-02 10:07:25 · 3 answers · asked by . 1

2007-01-02 10:03:28 · 4 answers · asked by 1234 1

why or why not?

2007-01-02 10:02:51 · 4 answers · asked by lala haha gaga mama 2

I'm doing a personal research project, mostly focused on different types of planets, their compositions, atmospheres, etc; It would be very helpful to this pet project if I knew a few bits of information-

1- What is the minimum density of oxygen nessisary in the air for us to breathe and survive? Since different planets have different atmospheric pressures, I'm hoping to get this in g/cm2, but even a percentage by our own atmospheric pressure would be helpful (i can calculate it myself)

2- What about other animals? Considering whichever multicell air breathing animal requires the least oxygen, what minimum 02 concentration do they need?

3- What about sea animals and O2 in the water?

4- Lastly, what about plants and CO2? Same as all the above.

Note that I am interested in the needed O2 and CO2 only, not air pressure or other factors.

I know this might be a tall order but this info would be VERY helpful, and I have no clue where to look for it. Thanks and God bless!

2007-01-02 09:55:56 · 1 answers · asked by The Link 4

I have to fabricate data for my biology IA and I don't know what to base it around

2007-01-02 09:53:17 · 1 answers · asked by Anonymous

2007-01-02 09:50:49 · 1 answers · asked by Xabi A 1

list the product of digestion of fats,carbohydrates

2007-01-02 09:45:26 · 2 answers · asked by Anonymous

cell membrane,
nucleus,
nuclear membrane,
vacuole,
free ribosomes,
chromosomes,
cytoplasm,
mitochondria,
lysosome

2007-01-02 09:35:39 · 7 answers · asked by Anonymous

only starch and water outside? Which would leave the bag and which would enter? Why?

2007-01-02 09:14:28 · 1 answers · asked by Anonymous

2007-01-02 09:06:59 · 6 answers · asked by jaywilsonfff 1

In meiosis
1: homologous chromosomes synapse in prophase I?
2: No spindle forms?

2007-01-02 08:49:23 · 2 answers · asked by Anonymous

Europeans can have blond, brown, auburn, chestnut, and red hair. They can have blue, green, hazel, and light brown eyes. However generaly speaking, Asians and Africans all have black hair and very dark brown eyes? Why do europeans have so much diversity and not the other people?

2007-01-02 08:44:37 · 7 answers · asked by ihaveissues 1

2007-01-02 08:33:03 · 3 answers · asked by Anonymous

What is a germ?

2007-01-02 08:28:41 · 28 answers · asked by Perseus 3

2007-01-02 08:22:24 · 6 answers · asked by mesmerized 5

2007-01-02 08:11:26 · 6 answers · asked by Kripster 1

2007-01-02 07:52:57 · 4 answers · asked by CuriousPaula 1

2007-01-02 07:30:35 · 15 answers · asked by Anonymous