Evolution - Unit 8 Test Corrections

Front

What does similar DNA sequences between organisms illustrate?

Back

Common ancestry.

Front

What is the study of embryos in vertebrates that shows common ancestry?

Back

Embryology.

Front

Which rock layer would contain the oldest fossils?

Back

Layer 4.

Front

What is the process by which individuals better suited to the environment survive and reproduce?

Back

Natural Selection.

Front

Which fossil is likely older: Fossil D or Fossil C?

Back

Fossil D is older than Fossil C.

Front

What is the term for the gradual change in species over time?

Back

Evolution.

Front

What is the significance of the fossil record in understanding evolution?

Back

It provides evidence of past life forms and their changes over time.

Front

What is the term for the variety of different traits within a species?

Back

Variation.

Front

What is the process by which species adapt to their environment over generations?

Back

Adaptation.

Front

What is the term for a sudden reduction in population size due to environmental events?

Back

Population bottleneck.