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Light adaptation

Light adaptation

The visual adjustment occurring under increased illumination in which the retinal sensitivity to light is reduced.

See: light-adapted eye.

Synonym: photopic adaptation.


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relationshiop between process of evolution and a mechanism

... cause natural selection to happen. Directional selection: Example... light fur coloured mice die more due to hawks eating them, so in the next ... of organisms in response to natural selection is known as "adaptation", for example, long legs in antelopes are an adaptation for ...

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by rajvandam
Mon Sep 15, 2008 3:30 am
 
Forum: Evolution
Topic: relationshiop between process of evolution and a mechanism
Replies: 2
Views: 1455

Re: Brain size=IQ level theory (Blacks vs Whites & Asians)

... would destroy his entire thesis. Rather than revise his arguments in light of the truth, Gould chose to repeat them without change and to withold ... and "dialectical processes". Gould notwithstanding, Darwinian adaptation is the way evolution works and the mechanism on which working ...

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by TJJ
Fri May 16, 2008 12:13 am
 
Forum: Human Biology
Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
Replies: 18
Views: 12458

Are tissues in the body capable of sensing pain?

actually the cause has to do with the adaptation of the eye to light. the darkness causes all the retinen in cone cells to associate with its opsin partner, leading ...

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by MrMistery
Thu Jan 10, 2008 6:42 pm
 
Forum: Human Biology
Topic: Are tissues in the body capable of sensing pain?
Replies: 24
Views: 2236

URGENT RESEARCH NEEDS

... to see if anything needs improving? cheers titile page: the effect of light intensity on the distribution of helice crassa. Introduction: the ecological ... to high light intensity.because they are prone to dessication.many adaptation features help them reduce the effect of dessication.these include: ...

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by chenwithasterisk
Wed Feb 28, 2007 7:21 am
 
Forum: Zoology Discussion
Topic: URGENT RESEARCH NEEDS
Replies: 20
Views: 8474

biodiversity

... that have adapted eyes, allowing them to see better with little to no light), the selection pressure is increased for less obvious ones (the angler fish lures prey to it with an unusual adaptation, its light). I don't know how clear I was here, but the relatively constant ...

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by KyGuy
Wed Feb 21, 2007 7:46 am
 
Forum: Ecology
Topic: biodiversity
Replies: 9
Views: 2455
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