Question

Which of the following statements is true concerning what the world was like when the first primate-like animals lived?

a) Most land masses had tropical or subtropical climates.
b) The continents were essentially in the same location as today and they had the same shapes.
c) Most of the plants and animals that are found on earth today were present.
d) none of the above

Answer 1

The correct answer is that when the first primate-like animals lived, most land masses had tropical or subtropical climates, as it was during the warm and humid Tertiary Period.

Step-by-step explanation:

Concerning the world when the first primate-like animals lived, it is true that tropical or subtropical climates dominated. During the Tertiary Period, which lasted from 65 million to 1.8 million years ago, Earth's climate was generally warm and humid. This climate was conducive to the evolution of mammals, including primates and human ancestors, and led to the appearance of modern rain forests and grasslands. Conversely, during the Permian period, when all land masses formed the supercontinent Pangaea, the climate was extreme and very dry, which is quite different from the Tertiary Period. So, option a) 'Most land masses had tropical or subtropical climates' would be the correct answer to the question of what the world was like when the first primate-like animals lived.