Front

What are the two types of organisms that have hair?

Back

Primates and Rodents.

Front

Where do adaptations come from?

Back

Both mutations and genetic recombination are sources of adaptation.

Front

Which pair of organisms is least related based on amino acid sequence differences?

Back

Human and horse.

Front

How does the fossil record help build a timeline of life on Earth?

Back

The older a fossil is, the deeper it will be found within layers of sedimentary rock.

Front

Do organisms 'decide' to evolve?

Back

No, they change because of natural selection.

Front

What is evolution?

Back

The process by which different kinds of living organisms develop and diversify from earlier forms during the history of the earth.

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 a mutation?

Back

A change in the DNA sequence that can lead to variations in traits.

Front

What is genetic recombination?

Back

The process by which genetic material is physically mixed during the formation of gametes.

Front

What is a fossil?

Back

The preserved remains or traces of a once-living organism.