explain natural selection with suitable example?
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Natural selection is the process in nature by which organisms better adapted to their environment tend to survive and reproduce more than those less adapted to their environment. For example, treefrogs are sometimes eaten by snakes and birds.
Answer:
Natural selection, process that results in the adaptation of an organism to its environment by means of selectively reproducing changes in its genotype, or genetic constitution.
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Natural selection, process that results in the adaptation of an organism to its environment by means of selectively reproducing changes in its genotype, or genetic constitution.
Charles Darwin: On the Origin of Species
Charles Darwin: On the Origin of Species
Title page of Charles Darwin's On the Origin of Species by Means of Natural Selection, 1859.
Library of Congress, Washington, D.C. (neg. no. LC-USZ62-95224)
Natural selection
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KEY PEOPLE
Charles Darwin
Alfred Russel Wallace
Patrick Matthew
Francisco J. Ayala
H.W. Bates
George C. Williams
Edmund Brisco Ford
RELATED TOPICS
Evolution
Survival of the fittest
Adaptation
Sexual selection
Group selection
Selection
Darwinian fitness
Microevolution
A brief treatment of natural selection follows. For full treatment, see evolution: The concept of natural selection.
major evolutionary events
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evolution: The concept of natural selection
The central argument of Darwin’s theory of evolution starts with the existence of hereditary variation....
In natural selection, those variations in the genotype (the entire complex of genes inherited from both parents) that increase an organism’s chances of survival and procreation are preserved and multiplied from generation to generation at the expense of less advantageous variations. Evolution often occurs as a consequence of this process. Natural selection may arise from differences in survival, in fertility, in rate of development, in mating success, or in any other aspect of the life cycle. All such differences result in natural selection to the extent that they affect the number of progeny an organism leaves.