What do hammerhead sharks have in common with goldfish?
A) They both have an operculum.
B) They both have a lateral line system.
C) They both have a calcium-enforced skeleton.
D) They both have a cartilaginous skeleton.
Correct Answer:
Verified
Q44: Which chordate trait evolved first?
A)Calcium-hardened skeleton
B)Amniotic egg
C)Four
Q45: What is the main difference between amphibians
Q46: Which of the following group is most
Q47: Although exceptions do exist, which is a
Q48: What is the main difference between monotremes
Q50: Compared to mammals and reptiles, what characteristic
Q51: Birds are a type of reptile.
Q52: What characterizes terrestrial tetrapods?
A)Lives on land, has
Q53: Humans belong to the phylum _.
A)echinoderms
B)mollusks
C)chordates
D)arthropods
Q54: All mammals _.
A)give birth to live young
B)are
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