Question:
Analogous structures are
Analogous structures are
Updated On: Jul 27, 2022
- anatomically different but performing similar functions
- anatomically similar but performing different functions
- anatomically similar and functioning similarly
- anatomically different and functioning differently
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The Correct Option is A
Solution and Explanation
The organs which are anatomincally different but perform similar functions are called analogous organs. For example, insect and birds wings are different in basic structure and origin because insect wing is formed from integument while the bird wing is a modified forelimb but functionally both are adapted to flight. The organs which have same basic structure but different functions are called homologous organs.
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Concepts Used:
Evolution
Evolution is a process that occurs in changes in the genetic content of a population over time. Evolutionary change is generally classified into two: microevolution and macroevolution. The process of changes in allele frequencies in a population over time is a microevolutionary process. Three main mechanisms that cause allele frequency change are natural selection, genetic drift, and gene flow. On the other hand, macroevolution refers to change at or above the level of the species.