Which part of the GTS is the time of dinosaurs?

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

Which part of the GTS is the time of invertebrates such as bizarre sea creatures?

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

Which part of the GTS is the time of mammals?

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

Which part of the GTS is the time of chaos, like meteor impacts, intense solar radiation, and volcanic eruptions?

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

A scientists that studies fossils is called a

• paleontologist

• geologist

• biologist

• chemist

A scientists who studies Earth is called a

• paleontologist

• geologist

• biologist

• chemist

A(n) ___ event is a change in the living things on Earth.

• transformation

• evolution

• extinction

• geology

A(n) ___ event is a change in the Earth or surface of the Earth.

• transformation

• evolution

• extinction

• geology

A(n) ___ event is when all members of a species die.

• transformation

• evolution

• extinction

• geology

__ is a change over long periods of time

• transformation

• evolution

• extinction

• geology