Which of the following is NOT true of animals.

A) animals have a blastula stage of development
B) animals are multicellular
C) some animals can reproduce asexually
D) animals have cell walls composed of chitin

And

Which of the following statements is correctly matched?

A) cnidarians - spicules of silica
B) ctenophores - venomous
C) cnidarians - polyp and medusa body forms

D) poriferans - colloblasts

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!