Answer:
Explanation:
Fish have scales for many reasons. Firstly, to protect the skin of the fish from attacks from predators, parasites and other injuries. Secondly, scales overlap each other in the same way that an armour would protect a person. Hence, providing a layer of protection for the fish.
The esophagus has to be flexible to allow for food to travel from the mouth to the stomach
The right answer is Mitochondria.
The answer is because they are not necessary for the plant to reproduce
