The human appendix is a structure we still have, but no longer serves a purpose. What
type of structure is this known as?
a
Homologous
b
Analogous
C
Vestigial

C. Vestigial

Explanation:

Vestigial is a type of structure or organ which is used in ancient times in the body but now it has no use due to changes that occurs in the organisms with the passage of time. Human appendix is the example of such structure. Human appendix helps in the digestion of food materials or part of digestive system but now it has no function in the human body.

The human appendix is a structure we still have, but no longer serves a purpose. What  type of structure is this known as?

A vestigial structure

Explanation:

explanation:

on disadvantage of hydroelectric power is the cost. another disadvantage of using hydroelectric power is finding a water source powerful enough to harvest hydroelectric power.