PLEASE HELP The skeleton of a shark is made of bone.
a. true
b. false
17
A cold-blooded animal is able to maintain a constant body
temperature despite the temperature of its surroundings.
a. true
b. false
18
Many frogs have bumps behind their eyes that contain a poisonous
liquid.
a. true
b. false
19
Jawless fish are the most primitive of all the fish.
a. true
b. false
20
During the winter, frogs and toads go into a deep sleep called
molting.
a. true
b. false