Mammal and reptile fossils can be differentiated based on ____.
A) pelvis shape
B) stomach contents
C) habitat, as determined from rock type
D) outer covering
E) ear bone and jaw structure
Correct Answer:
Verified
Q37: The cynodonts were the direct ancestors of
Q38: Pterosaurs were _.
A) ancestors of birds
B) flying
Q39: Dinosaurs are examples of _.
A) fish
B) invertebrates
C)
Q40: Vascular plants having flowers and seeds are
Q41: The aquatic _ were porpoise-like reptiles, which
Q43: True mammals evolved from _, which were
Q44: Animals that move on four limbs are
Q45: The _ is the most heavily armored
Q46: Which statement about ichthyosaurs is true?
A) They
Q47: Phytoplanktonic organisms with skeletons made of silica
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