Ecosystem Interactions

Which of the following best describes a predatory interaction in an ecosystem?

• Cooperation between two species

• Competition for resources among species

• One organism hunting and consuming another organism

• Mutual exchange of benefits between organisms

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MS-LS2-2

Which of the following are biotic factors in an ecosystem? (Select all that apply)

• Temperature

• Plants

• Water

• Animals

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NGSS.MS-LS1-4

NGSS.MS-LS2-4

A snake is eaten by a hawk. The hawk is the _______.

• prey
• parasite
• predator
• all of these

Field mice eat corn. Which would most likely happen if the field mouse population grew?

• There would be more corn to feed the field mice.
• There would be less corn due to the mice eating it.
• The habitat would get overpopulated because the mice woudl eat too much.

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following is an example of an abiotic factor in an ecosystem?

• Trees

• Sunlight

• Deer

• Bacteria

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NGSS.MS-LS2-3

What role does a rabbit play when it is eaten by a fox in an ecosystem?

• Producer

• Prey

• Predator

• Decomposer

Tags

NGSS.MS-LS2-2

Which of the following scenarios best illustrates a mutualistic relationship in an ecosystem?

• A lion hunting a zebra

• A tree providing shade to a rock

• Two deer fighting for territory

• A bird cleaning the teeth of a crocodile

If the population of predators in an ecosystem decreases, what is the most likely immediate effect on the prey population?

• The prey population will remain the same.

• The prey population will increase.

• The prey will become predators.

• The prey population will decrease.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Honey guide birds alert and direct badgers to bee hives. The badgers then expose the hives and feed on the honey first. Next the honey guide birds eat. Both species benefit. 

• parasitism
• commensalism
• mutualism

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NGSS.MS-LS2-2

Which example shows a relationship between a living thing and a non-living thing?

• An insect is food for salmon.
• Water carries a rock downstream.
• A tree gets nutrients from the soil.
• A flower makes food for a butterfly.

Tags

NGSS.MS-LS2-3