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Pheromones

pheromones

chemical substances which, when secreted by an individual into the environment, cause specific reactions in other individuals, usually of the same species. The substances relate only to multicellular organisms. This includes kairomones. Allomones are repellent pheromones.


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Homosexuality - mutation? Evolutionary reasons.

Interesting ideas. But how can you say with such certainty? Got any sources I can scope out? Really interesting by the way, I never thought about pheromones. ps - dig the hair.

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by Darwin420
Sun Dec 07, 2008 4:11 am
 
Forum: Evolution
Topic: Homosexuality - mutation? Evolutionary reasons.
Replies: 33
Views: 5488

The Backster Effect and Implications

... are practically the same as those of the lie detector test. Plant to plant communication occurs primarily through compounds called pheromones and there is a good chance that plants can respond to human pheromones as well...

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by Cat
Wed Jul 30, 2008 3:36 pm
 
Forum: Botany Discussion
Topic: The Backster Effect and Implications
Replies: 8
Views: 2173

Re: Instinct- the mechanism

[ Perhaps that most basic instinct. Pheromones, symmetry, signs of virility, signs of mother hood etc... Yes I agree that attraction is based on preconceived ideas, however; the need to mate is instinct. I am sure last man, and last woman ...

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by canalon
Sun May 04, 2008 1:36 am
 
Forum: Evolution
Topic: Instinct- the mechanism
Replies: 16
Views: 2921

Re: Instinct- the mechanism

(such as what features to find attractive in the opposite sex) Perhaps that most basic instinct. Pheromones, symmetry, signs of virility, signs of mother hood etc... Yes I agree that attraction is based on preconceived ideas, however; the need to mate is instinct. I am ...

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by MichaelXY
Sat May 03, 2008 6:16 am
 
Forum: Evolution
Topic: Instinct- the mechanism
Replies: 16
Views: 2921

horses and insects

That again is homology and analogy, just review some of it. Though the two organsisms are guided by their instinct to reproduce. Pheromones or hormones subject them to reproductively become successful regardless of being sexual or asexual.--or else they'll be extinct for the next 5 years.

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by mcar
Thu Dec 06, 2007 2:28 pm
 
Forum: Zoology Discussion
Topic: horses and insects
Replies: 5
Views: 2893
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