Unit 4 Earth Over Time Vocab Practice

What is the change in species over time called?

An informal unit of geologic time consisting of the first three eons during which Earth formed and became habitable is called the _________.

What is the building block of proteins?

What are microscopic, photosynthetic prokaryotes that formed stromatolites and changed early Earth’s atmosphere by generating oxygen?

The ancient geographic setting of an area is known as _________.

What is the process by which organisms better adapted to their environment tend to survive and produce more offspring?

What term describes the gradual process by which ecosystems change and develop over time?

What is the term for a preserved remains or traces of ancient organisms?

What is the theory that explains how continents have moved over geological time?

What is the term for the variety of life in the world or in a particular habitat or ecosystem?