LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

DIVERSITY AMONG LIFE FORMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which are the best examples of homologous structures?
A
Wisdom teeths and whales hipbones
B
human appendix and tailbone
C
insects wings and a bats wings
D
whales flippers and bat wings
Explanation: 

Detailed explanation-1: -Wings of a bat, flippers of whale and limbs of human beings are all homologous to each other as they have a common origin, hence similar internal structure (bones that comprise them).

Detailed explanation-2: -1: Homologous structures: Bat and bird wings are homologous structures, indicating that bats and birds share a common evolutionary past. Notice it is not simply a single bone, but rather a grouping of several bones arranged in a similar way.

Detailed explanation-3: -The flippers in whales and the wings in the birds are referred to as homologous because these organs have arisen through divergent evolution. These organisms, therefore, have a common ancestor.

There is 1 question to complete.