The History of Life-Life Sciences

The earth was formed how many years ago?

• 450 billion years ago

• 45 billion years ago

• 4,5 billion years ago

• 405 billion years ago

A Geological Time Scale is divided into ...

• eons, eras & fossils

• eons, permians & periods

• eons, eras & periods

In which period did major groups of animals suddenly appeared?

• Devonian

• Permian

• Cambrian

The most recent eon.

• Phanerozoic

• Archean

• Cambrian

A transition fossil that has both reptile and bird features.

• African Apes

• Archaeopteryx

• Dinosaurs

Large reptiles that became extinct about 65 million years ago.

• African Apes

• Archaeopteryx

• Dinosaurs

The movement of land masses during the history of the Earth.

• Ice ages

• Continental drift

• Cambrian explosion

The person who studies fossils is called ...

• an archaeologist

• an anthropologist

• a paleontologist

A period in the earth's history where global temperatures decreased and there was glaciation is known as ...

• an ice age

• the greenhouse effect

• a cold spell

The Phanerozoic eon is divided into how many eras?

• 3

• 7

• 5