What crawls and is known to have a complex nervous system? \nOptions:\n- (A) fur seals\n- (B) Insects.\n- (C) mammals\n- (D) animals\n- (E) a fish\n- (F) humans\n- (G) bees\n- (H) ducks
Think hard. Detailed solution:
(B)
Most invertebrates have a more complex nervous system.

Insects are the most common invertebrates.

Insects have a more complex nervous system.

.

Therefore, the answer is (B)