Ecosystem Review

How is a food web different from a food chain?

• A food web combines many different food chains.
• A food web does not include decomposers whereas a food chain does.
• A food web is for insects whereas a food chain is for mammals.
• A food web is for insects whereas a food chain is for mammals.

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NGSS.MS-LS2-3

Organism A spends a significant portion of its life in or on organism B.  Organism A causes harm to organism B without immediately killing it.  Which of the following describes this interaction?

• parasite/host
• predator/prey
• carnivore/omnivore
• host/parasite

With which abiotic factor does a black bear interact?

• salmon
• plants
• insects
• a cave

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NGSS.MS-LS2-3

What is the role of an oak tree in an ecosystem?

• It cannot make its own food.
• It uses the sun's energy to make food.
• It eats other organisms.
• It breaks down dead organisms and returns nutrients to the soil.

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NGSS.MS-LS1-6

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Which of the following is an interaction with an abiotic element of the environment?

• catching beetles on the lawn
• drinking water from a stream
• burying acorns by an oak tree
• running from a neighbor's cat

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NGSS.MS-ESS2-4

A forest food chain contains a tree, grasshopper, lizard, bird, and wolf.  Which organism(s) are consumers?

• All of the organisms
• wolf, lizard, and bird
• wolf
• wolf, lizard, bird, and grasshopper

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NGSS.MS-LS2-2

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Which type of organism "recycles" nutrients back into an ecosystem?

• decomposers
• consumers
• producers
• omnivores

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NGSS.MS-LS2-3

A pond ecosystem includes a number of different types of birds, mammals, reptiles, and fish.  All of these different groups make up the ecosystem's

• microorganisms
• abiotic factors
• populations
• community

Manual builds a terrarium for his pet lizard. Which is an abiotic factor he should include in the habitat?

• plants
• insects
• water
• fish

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NGSS.MS-ESS2-4

A non-native plant in an ecosystem spreads quickly.  This will most likely directly affect the native plants by

• leaving them less space
• giving them more food
• helping them grow
• leaving them more sun 

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NGSS.MS-LS2-1

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