Saturday 24 May 2014
How does Adaptation for habitat helped in evolution history studies?
Adaptation is one of the basic phenomena of biology, and is the process
whereby an organism becomes better suited to its habitat. Also, the term
adaptation may refer to a trait that is important for an organism's
survival. For example, the adaptation of horses' teeth to the grinding
of grass or the ability of horses to run fast and escape predators. By
using the term adaptation for the evolutionary process, and adaptive
trait for the product (the bodily part or function), the two senses of
the word may be distinguished. Adaptations are produced by natural
selection. The following definitions are due to Theodosius Dobzhansky.
1. Adaptation is the evolutionary process whereby an organism becomes
better able to live in its habitat or habitats. 2. Adaptedness is the
state of being adapted: the degree to which an organism is able to live
and reproduce in a given set of habitats. 3. An adaptive trait is an
aspect of the developmental pattern of the organism which enables or
enhances the probability of that organism surviving and reproducing.
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