Question

1. jellyfish have one of the earliest nervous systems. it is called a neural ______ that weaves around the inner margin of the bell. a) brain b) net c) cognition d) hippocampus

Explanation:

Jellyfish have a simple nervous - system called a nerve net that weaves around the inner margin of the bell. They lack a centralized brain, cognition in the complex sense, and a hippocampus (which is part of the mammalian brain).

Answer:

B. Net