Evolution

Front

What are homologous structures?

Back

Structures in different species that are similar due to shared ancestry, indicating evolutionary relationships.

Tags

NGSS.MS-LS4-2

Front

What is extinction?

Back

The complete disappearance of a species from Earth.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-4

Front

What does it mean if two organisms have very similar DNA sequences?

Back

It indicates that the organisms are closely related and share a common ancestor.

Tags

NGSS.HS-LS4-1

Front

Which organism is most closely related to humans based on hemoglobin comparison?

Back

Chimpanzees, as they have the fewest amino acid differences with humans.

Tags

NGSS.HS-LS4-1

NGSS.HS-LS4-2

Front

What is an adaptation?

Back

An inherited trait that enhances an organism's ability to survive and reproduce in its environment.

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

Front

What are analogous structures?

Back

Structures in different species that serve similar functions but do not share a common ancestry.

Front

What is natural selection?

Back

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

Tags

NGSS.MS-LS4-4

Front

What is a fossil?

Back

The preserved remains or traces of an organism that lived in the past.

Tags

NGSS.MS-LS4-1

Front

What is the significance of vestigial structures?

Back

These are remnants of organs or structures that had a function in an early ancestor but are no longer useful in the current organism.

Tags

NGSS.MS-LS4-2

Front

What is genetic variation?

Back

Differences in DNA among individuals within a population, which can lead to different traits.

Tags

NGSS.MS-LS4-4