The first mammals reproduced by means of
A) an egg.
B) a pouch.
C) a placenta.
D) asexual reproduction.
Correct Answer:
Verified
Q34: The first animals to adapt to life
Q35: The first vertebrates to be able to
Q36: All amphibians must return to the water
Q37: The development of a shelled egg allowed
Q38: For animals to reproduce on land they
Q40: Marsupial animals complete development in
A) a placenta.
B)
Q41: The most common terrestrial animals are
A) birds.
B)
Q42: Polychaetes are
A) parasites.
B) primarily marine.
C) able to
Q43: Annelid worms
A) are segmented.
B) only live in
Q44: Where in a host's body do most
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