HMH Biology Unit 9

A bee receives nectar from a flower and carries the pollen to other flowers:

• predation

• parasitism

• mutualism

• commensalism

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Mistletoe grows and spreads on trees, taking their nutrients:

• predation

• parasitism

• mutualism

• commensalism

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What would happen within a few months after the formation of a volcanic island?

• pioneer species would grow

• no pioneer species would grow

• trees and large plants would grow

• rich, organic soil would be present

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What would be a good example of a primary consumer?

• carnivore

• detrivore

• decomposer

• herbivore

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Which organisms would be at the top or last trophic level?

• plant

• herbivore

• omnivore

• carnivore

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The monkey would be a

• decomposer

• producer

• primary consumer

• secondary consumer

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Which is an example of where primary succession could occur?

• a glacier melts and exposes new rocks

• natural fire burns a prairie

• a corn field is abandoned and left to overgrow

• flood covers a piece of land

Barnacles do not affect whales as they grow, but receive the benefit of a food source. This is

• parasitism

• mutualism

• commensalism

• neutralism

These organisms are often not shown in a food chain, but are important for recycling nutrients

• producers

• decomposers

• primary consumers

• carnivores

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90% of the energy that gets lost as you move up a food pyramid or chain gets lost as

• pollution to the environment

• heat to the environment

• energy for decomposers

• gets recycled

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