Multiple Choice
The beginning of the Phanerozoic is marked by the______ .
A) existence of a modern atmosphere
B) formation of large land masses
C) abundant life forms compared to earlier times
D) evolution of land plants and animals
E) development of hard body parts, such as shells and bones
Correct Answer:

Verified
Correct Answer:
Verified
Q54: One significant difference between oceanic and continental
Q55: The _era is the age of mammals.<br>A)
Q56: Early Earth was hot because _.<br>A) a
Q57: At the start of the Mesozoic, the
Q58: According to your text, which type of
Q60: A major obstacle the first land plants
Q61: During the _, a great wedge of
Q62: Earth's original atmosphere, several billion years ago,
Q63: Earth's core, mantle, and crust formed during
Q64: The supercontinent of Pangaea formed during the