Biology - June 2007

What is natures purpose for fireflies? I know they only live a short life. What do they contribute to this gigantic world?

2007-06-03 06:06:29 · 4 answers · asked by bar_merch 2

2007-06-03 05:55:01 · 1 answers · asked by Holly D. 1

The Question is simple:
When we eat food, it goes into the stomach through the oesophagous. The food is made acidic, and many enzymes (proteins) are secreted, in order ro digest the food.
The food reaches the intestine, where many nutrients are absorbed. Including some of the secretions made in the stomach. ( Not all are absorbed, since many of the enzymes are macro-molecules. So, they wouldnt be able to pass the absorbing membrane).
The tricky part is that Intestines also secrete (coupled with the secretions of Liver, Gall bladder, and pancreas, which join the main tract, after stomach).. So, the food (or whatever the material is called in the intestine) is rich with the body secreted enzymes (which are incidentally protein rich). Does the body absorb all these back?, and If yes, How?..
Why does the body need to secrete all those protein rich enzymes, when it can conserve straight away?..
The most important thing is- What happens to intestinal secretions?absorbed by Rectum?

2007-06-03 04:14:44 · 2 answers · asked by MDA 4

A family friend got the platelets down count upto 5000 only. some blue rashes on skin. some help us!!!!!!!!!

2007-06-03 03:52:02 · 1 answers · asked by manmohan_singla 1

Give at least 3 reasons. Thanks.

2007-06-03 03:49:51 · 6 answers · asked by yahooanswers 3

2007-06-03 03:28:21 · 2 answers · asked by allam 1

hey does anyone have any year 12 biology exam papers? they can be practise ones or past exam papers. if you do, can you PLEASE scan and email them to me on aiisha_jamini@yahoo.com or give me a website on where i can find some? your help will be so appreciated. thanks!

2007-06-02 21:51:40 · 1 answers · asked by aiisha_jamini 1

2007-06-02 19:03:37 · 1 answers · asked by Anonymous

why dont depolarisation and action potential mean the same thing? i cant quite figure out why

2007-06-02 18:45:23 · 4 answers · asked by Anonymous

astronauts of both sexes stay in space for weeks together. With their cumbersome suits how do they perform their bodily functions in the cramped space and wihout privacy? Also what happens to the waste products which accumulate over a period?

2007-06-02 18:03:46 · 4 answers · asked by batnisudhi 1

2007-06-02 17:26:30 · 6 answers · asked by Proud New Mommy! 3

you would be providing it with CO2 yeah?
So couldn't this prolong its life?

2007-06-02 16:30:41 · 9 answers · asked by cindy m 1

2007-06-02 16:02:23 · 9 answers · asked by abhinav 1

2007-06-02 15:54:47 · 8 answers · asked by a h 1

2007-06-02 15:34:59 · 4 answers · asked by Anonymous

Will the children end up looking the same.
In other words:

a1 [identical female 1] + b1 [identical male 1] have a child ab1
a2 [identical female 2] + b2 [identical male 2] have a child ab2

Will the children ab1 and ab2 look identical????

2007-06-02 15:32:28 · 11 answers · asked by Anonymous

2007-06-02 15:29:59 · 1 answers · asked by a h 1

2007-06-02 15:08:48 · 1 answers · asked by Jill O 1

does anybody knows? i need it for my extended essay pleaseee

2007-06-02 14:55:26 · 4 answers · asked by Anonymous

2007-06-02 14:16:51 · 5 answers · asked by Anonymous

2007-06-02 14:07:56 · 2 answers · asked by Anonymous

Need help with Bio questions..thanks : )

2007-06-02 13:51:38 · 9 answers · asked by Anonymous

i want to know because those are the two things i'm interested in

2007-06-02 12:15:22 · 4 answers · asked by Anonymous

A gruesome question, I know, but I need to know for this story I'm writing. What would the corpses look like about almost a century later? Would they just rot at the same rate as normal corpses? Please, PLEASE don't be too descriptive...

2007-06-02 12:12:26 · 5 answers · asked by lolwat 3

There's no current information over whether Mars actually contains life or pre-existing simple organisms, but there does seem to be a strong consensus within the science community over the possibility of life outside this planet. To date, in Mars we've only found pictures of supposed 'ravines' where water might've flowed over a year or so before eroding the valley (once believed to be left perfect in the absence of sandstorms)

From explanations such as the quantum mechanics which concerns itself over the quanta properties of small participles, life cannot possibly exist. How life developed on this planet is not just hard to understand but beyond comprehension. How did matter and space come into the picture?

2007-06-02 12:03:39 · 4 answers · asked by ibid 3

Does the evolutionary tree of plant and animal species point to a single common ancester or could there have been many life creating events?

Seems to me that if conditions were right for the creation of life 3.9Billion + years ago, then why would it have happened just once ?

2007-06-02 11:54:54 · 11 answers · asked by Yeti 3

can anyone explain how to use the log function to model bacteria growth. Plz explain how & why u would use it and it's relevance to exponential functions

2007-06-02 11:05:37 · 1 answers · asked by QK 1

I was working on problems in Genetics.One question says that 2 black guinea pigs were mated and after many years they had 28 black and 9 white offsprings.What is the parental genotype?If I take the parental genotypes as heterozygotes(Bb),I end up with 3:1 ratio which would mean 27:9..what is the right way to do this?
Similarly-when 3 yellow round pea seeds are grown and then crossed with green wrinkled pea seeds,the offspring were 24Yellow round,26 yellow wrinkled,25 green round and 25 green wrinkled.When I used YyRr as the parental genotype,I got 25 of each kind as the answer..I can't figure how to get the 24 and 26..can someone please help?

2007-06-02 10:51:24 · 4 answers · asked by mammaluv 2

Answers to real questions are hard to find. I asked a simple question while people fear knowing about what they are breathing in the air due to aircraft spraying and after an hour or so, all I got was silence. And that was after i was indirectly ridiculed with know-it-all jargon

I hope someone out there is above the average poster here.
I probably should ask you all what a good brand of soda or gummie bear would be instead. I feel embarassed to even care

2007-06-02 09:58:31 · 7 answers · asked by lenora k 1

My auntie was telling me that 'scientists' have decided that there are 3 'races' that the human race can be divided into: Caucasoid, Negroid and Mongoloid. These 'races' can be divided into smaller groups that we might more commonly think of as races but the big three have seperate observable characteristics that probably arose during long seperations between these groups' evolution.

These seperations were not long enough to induce a seperation into different species but were long enough to produce recognisably different characteristics in the 'races'.

I asked my auntie what those characteristics were and she couldn't remember!

Is she making it all up off the top of her head, loosely basing her argument on scientific fact in order to give it credibility, or are there recognisable differences and if so WHAT ARE THEY???

2007-06-02 09:37:04 · 10 answers · asked by tuthutop 2