Unit 2 Ecology Practice

Bacteria live in the intestines of cows and other organisms. Bacteria help to digest food for the cow. The cow provides a warm, moist environment to live.

• Mutualism

• Competition

• Parasitism

• Predation

Bald eagles can spot fish swimming in a lake from high altitudes, swoop down, and grab fish to feed their young back in the nest.

• Mutualism

• Competition

• Parasitism

• Predation

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Found at the base of a food chain (also known as autotrophs)

• Producers
• Primary Consumer
• Secondary Consumer
• Tertiary Consumer 

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The rabbit in this food web would be considered a:

• Decomposer
• Producer
• Secondary Consumer
• Primary Consumer

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How much energy is transferred from one trophic level to the next in an energy pyramid?

• 1%

• 10%

• 100%

• 90%

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Which of the following removes carbon from the atmosphere?

• Combustion
• Respiration
• Photosynthesis
• Death

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How does the carbon in grass become part of a lion?

• The lion eats the grass
• Carbon from grass doesn't end up in a lion. 
• The carbon ends up in the lion's food chain. 
• The lion breathes in carbon given out by the plant

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If the number of births is greater than the number of deaths in a population, what will happen to the growth of the population?

• It will increase.
• It will decrease.
• It will stay the same.
• It will fluctuate.

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Which type of growth is best illustrated by this rabbit population?

• exponential
• logistic
• S-shaped
• predator-prey

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What point on the graph represents the carrying capacity?

• A
• B
• C
• D

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