Ecology Unit Review- Biology

What can you conclude from the data on this graph?

Match the following equipment to its purpose

• Measuring mass

• 
• Measuring volume

• 
• Measuring length/distance

• 

Why do scientists do experiments?

• Because writing grants to fund research is hecka fun!

• In order to prove or disprove a hypothesis

• Because they love the disappointment of when experiments go wrong

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Removing which organism would have the largest effect on the ecosystem?

• Hawk

• Fox

• Frog

• Mouse

Answer explanation

The mouse has the most arrows going away from him, so more animals depend on him for food that any other organism

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If hawks were removed from this food web it would become ____________ stable

• Identically

• Less

• More

Answer explanation

The hawk controls many other populations. If you remove her, the prey organisms could overpopulate and overconsume resources.

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What, if added to this food web, would COMPETE with the primary consumers for resources?

• Coyote

• Mountain lion

• Deer

Answer explanation

Deer eat the same things (plants) as the primary consumers

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What, could make this ecosystem LESS stable?

• A disturbance that leads to ecological succession

• An invasive species

• Humans doing things to conserve the native habitat

Answer explanation

Those two things are included in HIPPCO, which tells us what is bad for ecosystems

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Which organisms have the MOST energy? The LEAST?

• Tertiary consumers/ producers

• Producers/ primary consumers

• Producers/ tertiary consumers

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Which organism would be a PRIMARY consumer?

• Grass

• Antelope/deer thing

• Lion

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Explain what is happening at each level of this energy pyramid. What groups of organisms would you find in each level? How much energy would they have?

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