Evolution

Front

What are homologous structures?

Back

Structures in different species that are similar due to shared ancestry, providing evidence for evolution.

Front

Why are homologous structures important to the theory of evolution?

Back

They serve as evidence that many species must have had a common ancestor.

Front

What is evolution?

Back

The process of change by which species of organisms change over time.

Front

What can scientists infer from the presence of a pelvic bone in a whale fossil?

Back

The whale had an ancestor with legs.

Front

What is relative dating in the context of fossils?

Back

A method used to determine the age of fossils by comparing them to other fossils.

Front

What is natural selection?

Back

The process where organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is the significance of the Theory of Natural Selection?

Back

It explains how species evolve over time through the survival of the fittest.

Front

What is a common ancestor?

Back

An ancestral species from which multiple species have evolved.

Front

What is the difference between absolute dating and relative dating?

Back

Absolute dating provides a specific age of a fossil, while relative dating places fossils in a sequence without providing an exact age.

Front

What is a fossil?

Back

The preserved remains or traces of ancient organisms.