Search found 155 matches

by Khaiy
Fri Mar 16, 2007 8:26 pm
Forum: General Discussion
Topic: whats a good site to go to?
Replies: 2
Views: 1294

If you want us to check your answers, we'd be happy to here, just post the question, what you think the right answer is, and a brief explanation of why. If we agree, we'll tell you, and if we don't, we'll help you out. Just so long as you're trying the questions on your own, we don't mind helping out.
by Khaiy
Wed Feb 28, 2007 4:35 am
Forum: Genetics
Topic: Tiny Animals
Replies: 1
Views: 1088

Tiny Animals

I saw a picture in my biology textbook of a transgenic tobacco plant which had genes from a firefly spliced into it, and so the whole plant bioluminesced. This got me thinking. Would it be possible (in theory at least) to identify genes for growth (since growth is largely determined by genes) in a s...
by Khaiy
Wed Feb 28, 2007 4:08 am
Forum: Evolution
Topic: What's the smallest unit of evolution?
Replies: 3
Views: 17170

I agree with you, and the posters above me. Viruses are not presently considered alive, and so the rules of biology wouldn't necessarily apply to them. But there has been a lot of debate about that, and that point might be a good one to bring up in that debate...
by Khaiy
Sun Feb 25, 2007 3:45 am
Forum: Zoology Discussion
Topic: Surviving dinosaurs
Replies: 5
Views: 3191

We don't do your homework for you, post some of your own ideas and we'd be happy to critique them though, and maybe present some of our own.
by Khaiy
Sun Aug 13, 2006 5:09 pm
Forum: General Discussion
Topic: New to Biology
Replies: 5
Views: 2798

The tutorials you can find on this site might be a good place to start, but you could read through the first couple of chapters of a biology textbook, just to get a basic grounding. Good luck on your test!
by Khaiy
Sun Jun 18, 2006 3:43 am
Forum: Human Biology
Topic: How Much Do We Actually Use?
Replies: 3
Views: 1466

How Much Do We Actually Use?

OK, I've always heard the numbers thrown around (at least, ever since the movie version of Matilda came out) that humans only ever use 10% of our brains. Years later, I read a book that stated this to be a flat out lie; that we used 100% of our brains to think. While the book was certainly more scie...
by Khaiy
Sun Jun 18, 2006 3:34 am
Forum: Evolution
Topic: Natural Pressure
Replies: 14
Views: 9754

I think that the current TOE does cover that, since the species that are introduced/were already there would feel selection pressures presented by the other organisms. It doesn't cover what would naturally happen without any human intervention, but the TOE really just describes pressures and respons...
by Khaiy
Sun Jun 18, 2006 3:25 am
Forum: Zoology Discussion
Topic: spider question
Replies: 4
Views: 1957

Spiders have very fine hairs, which (I believe) pick up on even tiny shifts in air currents, which alert them to motions that occur aroudn them very quickly.

P.S. I'm glad to be back, now that my login is finally being accepted again. Hopefully I'll be able to become a regular again.
by Khaiy
Tue May 02, 2006 12:49 am
Forum: Zoology Discussion
Topic: keeping animal cool
Replies: 11
Views: 8714

The fur gives an additional barrier between the source of heat (like the sun) and it's blood. This way, the movement of heat has to go source->fur->skin->blood->general increase in body temp, as opposed to source->skin->blood->body. Anything that forces heat to diffuse through more space will insula...
by Khaiy
Mon May 01, 2006 2:54 am
Forum: General Discussion
Topic: Immortality
Replies: 36
Views: 15811

That doesn't necessarily mean that as time passes people give up all morals. There's still a moral stance against murder (well, generally), which has been around as long as humanity itself. But we can't predict for certain what will happen in the future. Besides, immortality would create some pretty...
by Khaiy
Mon May 01, 2006 2:49 am
Forum: General Discussion
Topic: Jellyfish: Plant or animal?
Replies: 23
Views: 28841

The hint talks about cells being hypertonic or hypotonic to their solutions. But think about this: Animal cells have cell membranes, plant cells have cell walls... what do you know about those?
by Khaiy
Fri Apr 28, 2006 4:50 pm
Forum: Zoology Discussion
Topic: animal tails
Replies: 8
Views: 5937

We don't have them because our ancestors lost them for some reason; it could be chance, it could be that there was some disadvantage to a tail for an upright walking animal, or many other reasons. We can't be 100% sure what caused the evolutionary event that got rid of our ancestor's tails though, s...