7.5-3 Relationships in Ecosystems

Mutually beneficial interaction

• The interaction between two animals by which one animal eats the other

• When two or more individuals or populations attempt to obtain a single resource

• An interaction between organisms or species that is helpful to both

• An animal that preys on other animals

Tags

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An animal that preys on other animals

• Mutually beneficial interaction

• Ecosystem

• Predatory interaction

• Predator

How all the living and nonliving things in an area interact

• Predatory interaction

• Predator

• Ecosystem

• Competitive interaction

Tags

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Which is an example of parasitism?

• Seagull and fish

• Shark and seal

• Flea and dog

• Lion and zebra

How do prey benefit from predation?

• Prey do not benefit from predation.

• Predation limits the size of the prey population, thus decreasing competition.

• Prey learn how to run, swim, or fly faster to avoid being caught.

• Predation increases the size of the prey population, thus decreasing the chance that an individual animal will fall prey to a predator.

Which is an example of a symbiotic (mutualistic) relationship?

• Cat and mouse

• Bird and butterfly

• Bee and flower

• Cow and grass

Tags

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Competitive interaction

• The interaction between two animals by which one animal eats the other

• How all the living and nonliving things in an area interact

• When two or more individuals or populations attempt to obtain a single resource

• An animal that preys on other animals

Tags

NGSS.MS-LS2-2

Predatory interaction

• When two or more individuals or populations attempt to obtain a single resource

• The interaction between two animals by which one animal eats the other

• An interaction between organisms or species that is helpful to both

• How all the living and nonliving things in an area interact

(See Attached Diagram)

In this food web, which animals are in competition?

• Hawks and mountain lions

• Squirrels and hawks

• Antelopes and squirrels

• Hawks and coyotes

Tags

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What is an example of a predator–prey relationship?

• Bacteria and humans

• Lion and hyena

• Fox and rabbit

• Tick and deer