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Cells

Discussion of everything related to the Theory of Evolution.

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Cells

Postby MIA6 » Mon Oct 02, 2006 3:09 am

1. My biology teacher told us that species is a group of organisms that ARE ABLE to interbreed with each other. Does it mean like if cats want to be in the 'species' category, they must be able to have offspring with other animals,like dogs??? But i found in the dictionary, it says: composed of related individuals that resemble one another, are able to breed among themselves, but ARE NOT ABLE to breed with members of another species.
These are two completely different definitions for 'species'!!!

2. What do 'primitive cells' in biology mean?

Thanks so much.
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Postby sporkius » Mon Oct 02, 2006 4:25 am

When you break it down there are two terms in each species. There is the genus for us is homo. the specific name is the sapiens. In our case we cannot breed with any other thing besides a sapien. But other animals like cats and dogs can breed even though they are from two different classes. As far as the primitive cells they might be asking for prokaryotic cells. Or something like that. Do some research google is a great tool.
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Postby Dr.Stein » Mon Oct 02, 2006 8:05 am

Are you sure it is "interbreed" and not "inbreed"? Inbreed makes any sense here ;)

based on the Glossary of Term in Cellular Biology book, primitive cells refer to prokaryotic cells.
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Postby Dr.Stein » Mon Oct 02, 2006 8:08 am

sporkius wrote:But other animals like cats and dogs can breed even though they are from two different classes

What do you mean by "classes"? :?
Cats and dogs and another animals, even including human, ONLY can breed with similar species, where a species has some RACES. I think you refer to "races" here :wink: Animals and human have some races, and they succesfully breed with each other (inbreeding).
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Postby Ultrashogun » Mon Oct 02, 2006 11:48 am

Cats and dogs can breed?! WTF?
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Postby MrMistery » Mon Oct 02, 2006 5:24 pm

no they can't.. That i'm sure of..
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Postby kiekyon » Mon Oct 02, 2006 5:43 pm

i think he meant dogs and cats can breed with animals of different classes
still, it's very funny :lol:
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Postby Ultrashogun » Mon Oct 02, 2006 5:53 pm

MrMistery wrote:no they can't.. That i'm sure of..


Are you really sure?!
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Postby sporkius » Mon Oct 02, 2006 8:47 pm

Yes we are sure. Cats hate dogs and and mice hate cats. Dont you watch tom and jerry. They really cant breed though.
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Postby mith » Mon Oct 02, 2006 9:12 pm

He's being funny...

I believe the original statement might be more like:

If cats wanted to be in the same species as dogs, they would have to be able to interbreed...
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Postby Dr.Stein » Tue Oct 03, 2006 9:06 am

It is available! Here is the hybrid between cat and dog :twisted: :lol:

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Postby sporkius » Tue Oct 03, 2006 4:59 pm

mith wrote:He's being funny...

I believe the original statement might be more like:

If cats wanted to be in the same species as dogs, they would have to be able to interbreed...


Well said. i couldnt figure out how to word it. But you got it. Mine was still funny though :D
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