1. 1. The major adaptation that allowed vertebrates to move away from water and

Question

1. 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. 1. 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. 1. The following animals have characteristic stinging cells for catching prey EXCEPT
A) Christmas tree worm
B) sea anemone
C) coral
D) jellyfish

Explanation / Answer

1. 1. The major adaptation that allowed vertebrates to move away from water and inhabit drier environments was the development of D) an amniotic egg 2. 1. A feature found in bony fishes but not in sharks is A) swim bladder 3. The following statements can be applied to an animal EXCEPT B) Nutrients are absorbed from outside the body 4.1. The following animals have characteristic stinging cells for catching prey EXCEPT A) Christmas tree worm (it does not belong to cnidaria, which have characteristic feature of possesing stinging cells).

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