Question

What are analogous structures and list an example of analogous structures in two different species?

MCQ Options:
a. Analogous structures are identical structures in different species; Example: Human and chimpanzee hands
b. Analogous structures are similar structures with a common evolutionary origin; Example: Bat wings and bird wings
c. Analogous structures have different functions but share a common origin; Example: Fish fins and human arms
d. Analogous structures have similar functions but different evolutionary origins; Example: Insect wings and bird wings

Answer 1

Analogous structures are physical features that serve similar functions but evolved independently and do not share a common ancestor, like the wings of insects and birds.

Step-by-step explanation:

Analogous structures refer to physical features in different organisms that serve similar functions but have evolved independently, meaning they do not share a common evolutionary origin. A classic example of analogous structures includes the wings of insects and the wings of birds. While both types of wings enable flight, they are not identical in their anatomical structure or embryological development and did not arise from a common ancestor.

The correct answer to the multiple-choice question is: d. Analogous structures have similar functions but different evolutionary origins; Example: Insect wings and bird wings.