EVERYDAY SCIENCE

SCIENCE

ZOOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
organisms having different structural pattern but similar function are termed as
A
a Analogous structures
B
b Homologous structures
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Analogous organs are those organs that have some superficial resemblance, perform similar functions and yet, have different evolutionary origins and hence, different anatomical structures. Homologous organs are organs which have similar functions but different origins.

Detailed explanation-2: -Analogous structures are features of different species that are similar in function but not necessarily in structure and which do not derive from a common ancestral feature (compare to homologous structures) and which evolved in response to a similar environmental challenge.

Detailed explanation-3: -Analogous structures have different morphology, which means they are different in structure but have similar function. Let’s take our bat wing again, and this time compare it to a butterfly wing and a bird wing. The bone structure of the bat wing is closer to the bone structure of a human arm than it is to a bird wing.

Detailed explanation-4: -For example, analogous structures are structures that are similar or resembling in certain respects, e.g. in function or in appearance but not in evolutionary origin or developmental origins, such as the wings of a butterfly and the wings of a hummingbird are analogous.

Detailed explanation-5: -Analogous structures are similar structures in unrelated organisms. These structures are similar because they do the same job, not because they share common ancestry. For example, dolphins and sharks both have fins, even though they aren’t related. Both species developed fins because of how (and where) they live.

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