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link 17.09.2010 8:58 |
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Subject: simple and complex animals? simple and complex animals?
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Нашла вот такой ответ. наверное, стоит плясать от этого. Complex= many organs in the system, uses various means to maintain homeostasis, have vertebrae, can think, multiple parts, mating is also different like sexual reproduction instead of asexual reproduction, movement is different, such as uses of other sources like limbs, eating habits. Simple=less motile, less organs, simple minds, brain not develop as much, therefore far less thinking capabilities, might reproduce asexually (example a sponge), might eat different;y, example just filter things instead of finding own food. Complex animals = multicellular life forms with a number of organs inside. Paleontologists now have fossil evidence these life forms first appeared about 600 million years ago. |
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link 17.09.2010 9:19 |
| простейшие и многоклеточные, спасибо! |
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