Answer:
Central Nervous System
Spinal Cord
Peripheral Nervous System
Explanation:
The Nervous System has two MAIN parts. The Central Nervous System is made up of the brain and spinal cord.
The Peripheral Nervous System is made up of nerves that branch off from the spinal cord and extend to all parts of the body.
Hopefully, this answers's your question.
The correct answer is
Stasis
Population becomes isolated
After rapid change in isolated population
Reintroduction
The fish are eaten by ducks. Ducks cannot really swallow preys that are too big for their throats. They usually swallow organisms that are a lot smaller than fishes. because they do not have the capacity to bite and chew their preys.