Question

Today, biologists classify sponges as animals rather than plants. What evidence supports today’s classification? (SC.912.L.15.6)
*
1 point
a. Sponges have asymmetry.
b. Sponges do not have a backbone.
c. Sponges cannot make their own food.
d. Sponges do not have tissues or organs.

Answer 1

b. Sponges do not have a backbone.