Effects of Changes in Biotic and Abiotic Factors

What will happen to population sizes if a change is too severe?

• They will not be able to survive and reproduce.

• They might become endangered or extinct.

• Both A and B are correct.

• None of the above.

Tags

NGSS.MS-LS2-4

When an environment changes, some organisms are better adapted to deal with the change. What will these organisms do?

• They will survive and reproduce, passing on their genetic traits.

• They will survive but they will not reproduce.

• They will not be able to pass on their genetic traits.

• None of the above

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

Use the graph to answer the question. A hurricane occured at some point in this ecosystem. Which of the following choices is the most likely time that the hurricane occured?

• year 2

• year 5

• year 7

• year 12

Tags

NGSS.MS-ESS3-2

NGSS.MS-LS2-4

Why is a stick that broke off a tree still considered a bitoic factor?

• because it was once living

• because it was never living

What is the most likely adaptation for a rabbit which once lived in the snow but now lives in shrubs and rocks due to increased global temperature?

• they will see an increase in fur production

• they will become better swimmers

• they will grow longer ears

• their coats will become darker due to natural selection

Tags

NGSS.MS-LS1-5

NGSS.MS-LS4-4

Plants/producers are the foundation of every food chain. What will happen in periods of increased rainfall?

• Every population in the ecosystem will be reduced.

• Every population in the ecosystem will increase.

• Populations of organisms are not affected by rainfall.

• None of the above

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following is a biotic factor that might affect the life of an organism in an aquatic biome?

• pollutants in the water

• speed of water currents

• temperature of the water

• bacteria populations of the water

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What are some factors that could affect an ecosystems stability?

• droughts, floods, and heat waves

• hurricanes, packs of wolves, and temperature

• blizzards, heat waves and swarms of grasshoppers

• species of fish, the number of decomposers and the algae supply

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Using the diagram shown, what would happen in this ecosystem after a secondary succession event like a fire?

• annual plants would be among the first to grow

• grasses and perennials would appear

• grasses, shrubs and small trees would be present

• a mature oak and hickory forest would be present.

Tags

NGSS.MS-LS2-4

Using the chart, which information belongs in areas x and y?

• X- biotic factors; Y-abiotic factors

• X-abiotic factors; Y - biotic factors

• X-ecological relationships; Y-biotic relationships

• X- biotic relationships; Y-ecological relationships

Tags

NGSS.MS-LS2-3