Diversity and Evolution

Bacteria that survive treatment from antibiotics will reproduce and can cause some infections that are not treatable.

• True

• False

Tags

NGSS.MS-LS4-4

Species with few differences in DNA sequences share a much older common ancestor (80-100 million years ago)

• True

• False

Tags

NGSS.MS-LS4-2

Why do homologous structures provide evidence for evolution?

• Two species with similar skeletal structures live in the same habitat, so they are related.

• Closely related organisms generally have very different skeletal structures, but those structures usually perform the same function.

• When two species have structures that are very similar physically, it shows that the species may have evolved from a common ancestor that also had a similar structure, which provides evidence that the species are related.

• Structures with the same function show that two species learned to use them at the same time, which demonstrates an evolutionary relationship.

Tags

NGSS.MS-LS4-2

Which of these conditions is least likely to cause a species to become extinct due to environmental change?

• less genetic variation

• specific food preferences

• more genetic variation

• more competition for food

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

Human beings belong in which kingdom?

• Animalia

• Fungi

• Plantae

• Protista

What is evolution?

• the process in which inherited characteristics of a population change over generations such that new species sometimes arise

• a characteristic that improves an individual's ability to survive and reproduce in a particular environment

• a group of organisms that are closely related and can mate to produce fertile offspring

• the process by which individuals that are better adapted to their environment survive and reproduce.

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

If temperatures start rising in the Artic and the ice starts melting. If polar bears do not have adaptations that allow them to survive these changes, what may happen to the polar bears?

• They may change the environment.

• They may overpopulate.

• They may become another species.

• They may become extinct.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is the term for a slight change in a hawk's eyes which helps it see its prey from far away.

• environmental changes

• adaptation

• overproduction

• homologous strudtures

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

Which of the following do some scientists believe shows evidence for evolution in living species? (Check all that apply)

• fossils

• homologous structures

• DNA

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

The classification system most commonly used today separates organisms into ______ kingdoms?

• five

• three

• six

• four