2. What is cephalization?
O a concentration of nerve cells on the anterior end of an animal, forming a head and brain, found in
animals with asymmetry
O a concentration of nerve cells on the anterior end of an animal, forming a head and brain, found in
animals with radial symmetry
O a concentration of nerve cells on the posterior end of an animal, forming a head and brain, found in
animals with radial symmetry
O a concentration of nerve cells on the anterior end of an animal, forming a head and brain, found in
animals with bilateral symmetry
