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General Biology

Study Pack

Set 34 The Origin And Evolution Of Vertebrates

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Question 1

(Multiple Choice)

Free
The earliest known mineralized structures in vertebrates are associated with which function?

A)reproduction
B)feeding
C)locomotion
D)defence
E)respiration

Answer

Question 2

(Multiple Choice)

Free
Which of these might have been observed in the common ancestor of chondrichthyans and osteichthyans?

A)a mineralized, bony skeleton
B)opercula
C)bony fin rays
D)a spiral valve intestine
E)a swim bladder

Answer

Question 3

(Multiple Choice)

Free
Mylokkunmingia fengjiao,a fossil from the Cambrian

A)is considered the first chordate to have a head.
B)lacked vertebrae.
C)lacked ear and eye capsules.
D)resembled a hagfish.
E)A and B.

Answer