Answer:
1. D
2. C
Explanation:
1. Look at each of the answer choices to eliminate them:
A) Yes; animals do have a blastula stage of development, which comes after the morula (ball of 32 cells) has formed ---- eliminate
B) Yes; all animals are multicellular. This is one of the traits that distinguishes animals from unicellular protists, prokaryotes, etc ---- eliminate
C) Yes; some animals can reproduce asexually. For example, certain crabs, lizards, and even the Komodo Dragon can do so ---- eliminate
D) No; animals do not have cell walls. This is one of the key characteristics that distinguish animals from plants ---- this is the correct answer.
2. Cnidarians inherently have two types of body forms: the polyp and the medusa. The polyp is cylindrical and fixed in place; it doesn't move. However, the medusa is umbrella-like and can move around - picture a jellyfish. Thus, the answer is C.
Hope this helps!
