1 The major adaptation that allowed vertebrates to move away from water and inhabit drier environments was the development of

A) an endoskeleton

B) a placenta

C) feathers

D) an amniotic egg

2 A feature found in bony fishes but not in sharks is a________

A) swim bladder

B) flexible skeleton made of cartilage

C) lateral line system

D) muscular fins supported by bone

3 The following statements can be applied to an animal EXCEPT

A) The organism is composed of many cells.

B) Nutrients are absorbed from outside the body.

C) A blastula develops during early development

D) The organism is eukaryotic.

4 The following animals have characteristic stinging cells for catching prey EXCEPT

A) Christmas tree worm

B) sea anemone

C) coral

D) jellyfish