7th Grade Ecology Review 2021

An ecosystem is . . .

• All LIVING things in a certain area

• All NON-LIVING things in a certain area

• All living AND non-living things in a certain area

• Trees

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NGSS.MS-LS2-3

A lion kills and eats a zebra. This is an example of . . .

• parasitism

• predation

• mutualism

• lions are mean

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NGSS.MS-LS2-2

In a symbiotic relationship . . .

• no one benefits

• everyone benefits

• could be any type of relationship

• at LEAST one organism benefits

Check all of the following that are SYMBIOTIC relationships:

• parasitism

• mutualism

• predation

• commensalism

• competition

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NGSS.MS-LS2-2

Which of the following symbiotic relationships is considered parasitic?

• Ticks feeding on a dog
• Bees transporting pollen from flowers
• Pilotfish swimming under sharks
• Birds eating the insects fromo the back of hippo

Maria and her classmates are observing animals at the pond. They notice that two different species of birds feed on fish. Which of these describes the relationship between these two birds.

• Parasitism

• Competition

• Predator and prey

• Producer and consumer

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NGSS.MS-LS2-2

Which of these describes a mutually beneficial relationship between two organisms?

• A dog with worms in its intestine
• A turtle and a snail that both eat grass live in a river
• A honeybee pollinating a plant and receiving nectar for food
• A small fish attached to a shark, eating tiny pieces of the shark's food as it floats

Which of the examples below can BEST be described as mutualism between animals?

• A tapeworm lives in the intestine of a bird and consumes the food that the bird has eaten
• Mountain lions and wolves fight each other for the same deer
• A bird eats parasites off a rhinoceros while the rhinoceros provides protection to the bird
• Rats live in the garbage dump of a town and rarely interact with people

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NGSS.MS-LS2-2

Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.

• mutualism
• commensalism
• competition
• parasitism

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NGSS.MS-LS2-2

Red-billed oxpeckers are birds that often feed on parasites that infest impala.  This is an example of _______.

• commensalism
• mutualism
• neutralism
• competition

Tags

NGSS.MS-LS2-2