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Author Topic:   Booboocruise's Dissolvable Best Evidence
Flamingo Chavez
Inactive Member


Message 8 of 65 (38360)
04-29-2003 5:29 PM


Coevolution is very convincing. Yucca flowers depend on yucca moths. The moth has specialized mouthparts to collect and carry yucca pollen. While visiting a flower, the female moth places a packet of pollen in a depression on the stigma of the flower, ensuring successful seed formation. She then lays its eggs inside each flower it visits. When the moth"s eggs hatch, they feed on the developing seeds of the plant, but never eat all of them, ensuring that at least some viable seeds are produced.
Hummingbirds and the flowers they pollonate are other good examples.

  
Flamingo Chavez
Inactive Member


Message 34 of 65 (38603)
05-01-2003 12:15 PM
Reply to: Message 14 by booboocruise
05-01-2003 1:37 AM


Re: The process
why the fern has 480 chromosomes
In adittion to Q's post showing that this is an irelevant point anyway. Plants are capable of polyploidy. This is the ability of having several copies of the same genome. This comes about by having a gamete fertalized more than once. This does have some impact on the ability to reproduce, and sometimes can change their expressed trait. For instance the nice big stawberries that you like to eat so much, have 6 sets of chromosomes. Somehow, the result of these copies are (at least for strawberries) are a bigger fruit.
For this plant to be evaluated any further you have to be slightly more specific than 'fern.'
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"Science without religion is lame; religion without science is blind." - Albert Einstein

This message is a reply to:
 Message 14 by booboocruise, posted 05-01-2003 1:37 AM booboocruise has not replied

  
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