Organism Interactions in Ecosystems

In ABOUT which year did a decrease in the Moose population lead to a dramatic decrease in the Wolf population?

• 1965

• 1970

• 1975

• 1980

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following would lead to an INCREASE in an organism's population?

• Increased competition

• Their habitat is wiped out

• Their habitat is expanded

• Food becomes scarce

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

You would like to prove a certain species of plant is dependent on rainfall. Which data would be most helpful to prove this?

• The number of the plants and the amount of rainfall where they are found.

• Samples of the soil the where those plants grow.

• A list of the plant's predators.

• The number of sunny days where the plant grows.

Tags

NGSS.MS-LS2-1

Dolphin populations depend on Mackerel as food source. Which of the following scenarios would most likely be true?

• A change in the Mackerel population would not affect the dolphin population.

• A decrease in the Mackerel population would cause a decrease in the dolphin population.

• An increase in the dolphin population would lead to an increase in the Mackerel population.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Do organism 3 and organism 4 compete with each other, or depend on each other?

• Compete

• Depend

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

Squirrels often live in burrows in the ground. How do squirrels depend on these burrows?

Tags

NGSS.3-LS4-3

NGSS.4-LS1-1

What biotic and abiotic factors might a frog in a pond depend on for survival?

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

ABOUT how many more Moose than Wolves were there in the year 1960?

Tags

NGSS.MS-LS2-1