There are about ____ identified species of vertebrates.
A) 2,000
B) 5,000
C) 30,000
D) 50,000
E) 125,000
Correct Answer:
Verified
Q22: The coelacanth is found in the class:
A)
Q23: The amphibians are believed to have arisen
Q25: Extinct jawless fish include the:
A) lungfishes.
B) lancelets.
C)
Q27: Sharks detect motion in the water or
Q29: Lungs first evolved in which group?
A) cartilaginous
Q31: Hagfishes are differentiated from lampreys and all
Q32: Which term describes an animal that lays
Q35: Sharks that are _ incubate their eggs
Q35: Placoid scales are found on:
A) fleshy-finned fishes.
B)
Q37: The heart of amphibians has _ chambers.
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