U3 L1: Evidence of Common Ancestry & Diversity

Front

What is the best definition for Evolution?

Back

Evolution is the change in the heritable characteristics of biological populations over successive generations.

Front

What is the best definition for a Scientific Theory?

Back

A well-substantiated explanation of natural phenomena based on evidence.

Front

What is the best definition for a Fossil?

Back

A fossil is the preserved remains or traces of ancient organisms.

Front

What is the best definition for the Fossil Record?

Back

The fossil record is the history of life on Earth as documented by fossils.

Front

What is the best definition for Homologous Structures?

Back

Anatomical features in different species that share a common ancestry.

Front

What is the significance of the Fossil Record in understanding evolution?

Back

The fossil record provides evidence of the changes in species over time and supports the theory of evolution.

Front

What are Analogous Structures?

Back

Structures that serve the same function in unrelated species but do not share a common ancestry.

Front

What is Natural Selection?

Back

Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is a Common Ancestor?

Back

A common ancestor is a species from which two or more different species have evolved.

Front

What is the difference between Homologous and Analogous Structures?

Back

Homologous structures share a common ancestry, while analogous structures do not but serve similar functions.