Unit 11: Ecology & Evolution

What is Ecology?

• Parts with similar functions which develop from different parts of the embryo

• The remains and traces of past life or any other direct evidence of the past life

• The changes that have occurred in living things since the beginning of life due to differential reproductive success

• The scientific study of interactions

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In the energy pyramid here, how much of the energy in the producers gets passed to the herbivores?

• 10%
• 20%
• 80%
• 90%

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In the wild, some alligators gets their teeth cleaned by birds. The birds gets their food from the alligators' teeth.

What type of symbiosis is this?

• Mutualism

• Commensalism

• Parasitism

• Neutralism

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

• parasitism

• mutualism

• commensalism

• neutralism

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In the food web shown, the snail would be considered...

• primary consumer
• secondary consumer
• tertiary consumer
• producer

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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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What would be a good example of a primary consumer?

• carnivore

• detrivore

• decomposer

• herbivore

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Mistletoe grows and spreads on trees, taking their nutrients:

• predation

• parasitism

• mutualism

• commensalism

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In this photo, what is an abiotic factor?

• Deer

• Grass

• rain

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

• plant

• herbivore

• omnivore

• carnivore

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