NGSS.MS-LS2-4

A species is defined as endangered when it

• suffers from damage to its habitat.
• suffers from disease or predation.
• when there are hazards to the continued life of the species.
• all of the above

Tags

NGSS.MS-LS2-4

Why is the mouse population changing over time?

• The light mice can reproduce more successfully than the dark mice
• The hawks eat more dark mice than light mice because the dark mice taste better
• The hawks eat more light mice than dark mice because they can see the light mice more easily
• The hawks eat more dark mice than light mice because they can see the dark mice more easily

Tags

NGSS.MS-LS2-4

If you remove species from an ecosystem it can become _________.

• Unbalanced

• Healthier

• Larger

• Smaller

Tags

NGSS.MS-LS2-4

Using the food web what would happen if the eagle became extinct?

• The frog population would decrease.

• The frog population would increase.

• The butterfly population would increase.

• The snake population would decrease.

Tags

NGSS.MS-LS2-4

What type of oil is being harvested that leads to forests being destroyed?

• palm oil

• banana oil

• fern oil

• frond oil

Tags

NGSS.MS-LS2-4

A species could go extinct if:

• food becomes more plentiful.

• members of the species have adaptations to enhance survival.

• the environment changes drastically and no one can adapt.

• there is less competition for resources.

Tags

NGSS.MS-LS2-4

Which series of pictures BEST represents ecological succession?

• A

• B

• C

• D

Tags

NGSS.MS-LS2-4

Kudzu has overgrown many parts of South Carolina and native ground plants have disappeared from the area. This is an example of ---

• Parasitism between kudzu and the native plants.

• A predator prey relationship between ground plants and kudzu.

• Competition occurring between the native and invasive species.

• Commesalism occurring between the kudzu and native plants.

Tags

NGSS.MS-LS2-4

How does clam dredging affect the Chesapeake Bay?

• Increases pollution

• decreases habitats

• increases algae

• increases runoff

Tags

NGSS.MS-LS2-4

Scientists have been studying the size of three populations in a region. In this ecosystem, lions eat wild pigs, and wild pigs eat frogs. The data showed that all three populations were stable. Then the frog population decreased suddenly. What will likely happen to the size of the wild pig population as a result?

The size of the wild pig population will . . .

• increase

• stay the same

• decrease

Tags

NGSS.MS-LS2-4