Ecology 1

The graphs below represent competition between two different species. The solid line is the native species and the dotted line is an introduced species. Which graph best represents the native species out-competing the introduced species?

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Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

The graphs below represent competition between two different species. The solid line is the native species and the dotted line is an introduced species. Which graph best represents the introduced species out-competing the native species?

• 
• 
• 
• 

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following best describes a reason for a decrease in predator populations?

• an increase in prey populations

• an increase in vegetation to eat

• a decrease in prey populations

• excessive rainfall in a given month

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is the carrying capacity for this sheep population?

• 1.8 million
• 1.25 million
• 1.6 million
• 1.o million

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What point on the graph represents the carrying capacity?

• A
• B
• C
• D

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Since lynx prey on hares, an increase in the hare population causes an increase in the lynx population.

What type of interaction is the lynx and the hare?

• Biotic: Competition

• Abiotic: Competition

• Biotic: Predator-Prey

• Abiotic: Predator-Prey

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What is the difference between the biotic and abiotic factors?

• Biotic factors are living things and abiotic factors are nonliving things.

• Biotic factors are nonliving things and abiotic factors are living things.

What does letter A in the graph represent?

• population is increasing

• population is decreasing

• population size is stable

• population is extinct

Tags

NGSS.MS-LS2-1

The graph to the right shows the interaction of the wolf and moose populations on Isle Pekie. If the moose population continues to increase, the wolves' food supply will increase. What will most likely happen to the wolf population as a result?

• It will decrease.

• It will increase.

• It will remain the same.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which of the following best describes a reason for an increase in predator populations?

• an increase in prey populations

• an increase in vegetation to eat

• a decrease in prey populations

• excessive rainfall in a given month

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4