試題詳解

69. Which one is the correct description of the invertebrates?
(A) The two body forms of some Radiata is an example of alternation of generations.
(B) The nervous system of a cnidarian consists of a central ganglion leading into a nerve net.
(C) Scorpions do not lay eggs but rather give birth to live young.
(D) All Platyhelminthes are parasitic.
(E) Millipedes have a thousand legs whereas centipedes have only a hundred legs.