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Receptive

receptive

sensitive or responsive to stimulus.


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Structure of flower

... outer covering. Carpel\Pistil Female part of the flower. Consisting of the stigma, style and ovary. Stigma Often sticky top of carpel, serves as a receptive surface for pollen grains. Style The stalk of a carpel, between the stigma and the ovary, through which the pollen tube grows. Ovary Enlarged ...

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by snowfall
Thu May 30, 2013 5:29 pm
 
Forum: Botany Discussion
Topic: Structure of flower
Replies: 3
Views: 5940

The Keyhole Paradox: Challenging universal common descent.

... might have been caused. My argument is that each reproductive system's barbed or barb-ready state is simply not compatible with the non-barb-receptive/non-barbed state. On one hand, if you have a barbed penis attempting copulation with a non-barbed vagina, you have a whole host of issues ...

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by irtree
Tue Feb 07, 2012 3:44 am
 
Forum: Evolution
Topic: The Keyhole Paradox: Challenging universal common descent.
Replies: 5
Views: 4819

The Keyhole Paradox: Challenging universal common descent.

Complementary mutations do not need to arise at the same time. If the barbs give the male an advantage, that does not require females to only be receptive to males with barbs as well; there is an advantage to the male even without that. At any time after the males obtained their barbs, then there ...

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by AstraSequi
Tue Feb 07, 2012 12:42 am
 
Forum: Evolution
Topic: The Keyhole Paradox: Challenging universal common descent.
Replies: 5
Views: 4819

The Keyhole Paradox: Challenging universal common descent.

... but a female in the same general area in a similar generation would also have to randomly received the genetic mutation that makes them precisely receptive to barbs of the other cat's general size and composure in order to ovulate. That by itself is almost impossible in terms of probability, but ...

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by irtree
Tue Feb 07, 2012 12:02 am
 
Forum: Evolution
Topic: The Keyhole Paradox: Challenging universal common descent.
Replies: 5
Views: 4819

Re: Why are flowers "beautiful"?

... flowers. The smell, the nectar, the bulls-eye arrangement are all designed for pollinators. Bees being small tend to have eyes that are more receptive to small wavelengths (ultraviolet) and flowers have even more elaborate ultraviolet designs on them that cannot be seen by humans without ...

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by charles brough
Wed Sep 14, 2011 3:13 pm
 
Forum: Evolution
Topic: Why are flowers "beautiful"?
Replies: 112
Views: 56218
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