Evidence for Evolution

Front

What do we call the remains or evidence of remains of organisms that have died?

Back

Fossils

Front

True or False: Homologous structures show evidence for evolution because they show that these organisms had a common ancestor.

Back

True

Front

Because whales have a pelvis and femurs, it shows whales are descended from an ancestor that was able to _____________.

Back

walk

Front

All the individuals of a species that live in a particular area are called a _____________.

Back

population

Front

Why don't all living things become fossils?

Back

Because environmental conditions have to be just right (for formation & to prevent decay).

Front

What are homologous structures?

Back

Anatomical features in different species that share a common ancestry.

Front

What is the significance of fossils in understanding evolution?

Back

Fossils provide evidence of past life forms and their changes over time.

Front

What is a common ancestor?

Back

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 serve similar functions but do not share a common ancestor.

Front

What is extinction?

Back

The end of an organism or a group of organisms, often leading to the loss of biodiversity.