AP BIOLOGY

EVOLUTION

EVOLUTION OF A POPULATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Superficially similar features molded by natural selection in very different species are classified as what kind of structures?
A
vestigial
B
homologous
C
analogous
D
comparative
Explanation: 

Detailed explanation-1: -Superficially similar features molded by natural selection in very different species would be classified as Analagous structures.

Detailed explanation-2: -Convergent evolution is a kind of evolution wherein organisms evolve structures that have similar (analogous) structures or functions in spite of their evolutionary ancestors being very dissimilar or unrelated.

Detailed explanation-3: -When similar characteristics occur because of environmental constraints and not due to a close evolutionary relationship, it is called an analogy or homoplasy. For example, insects use wings to fly like bats and birds, but the wing structure and embryonic origin is completely different.

Detailed explanation-4: -Examples of analogous organs are wings of birds and butterflies, flippers of Penguins and Dolphins, eyes of the octopus and of mammals, sweet potato and potato.

Detailed explanation-5: -Analogous structures are anatomical structures that have similar functions, but arose independently. Due to environmental stresses and natural selection, organisms of different species evolved and adapted independently, resulting in the existence of body parts with similar functions.

There is 1 question to complete.