Chapter 2 - Ecosystems Review

Which of the following describes the role or function an organism performs in the food web of its community?

• Habitat

• Niche

• Life Cycle

• Adaptation

Which example describes a community?

• The number of mother deer and baby deer living in a forest.

• A population of gorillas living in a rainforest.

• A population of different types of cacti living in a desert.

• A population of ducks, fish, lilies, and insects living in a pond.

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What are the nonliving factors of an ecosystem?

Select all that apply.

• Sunlight

• Grasshopper

• Soil

• Grass

• Water

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In which scenario would a scientist use a dichotomous key?

• When identifying variables in an investigation about fish.

• When comparing and contrasting trees in a yard.

• When measuring how much different puppies weigh.

• When observing monkeys and noting their behaviors.

A positive human influence is:

• cutting down a forest

• hiking on a mountain trail

• feeding wild animals

• growing crops without pesticides

What is part of a deer's niche?

• The deer eats the cougar.

• The deer is an herbivore.

• The deer eats the rabbit.

• The deer is a carnivore.

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True or False:

The rodent eats more than one organism.

• True

• False

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After analyzing the food web, what is one conclusion you could make?

• The snake is a decomposer.

• There are six carnivores in this ecosystem.

• If the grass died out, all of the animals would be effected.

• If a bear was added to the web, the population of rodents would die out.

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Which animals are examples of populations?

Select all that apply.

• flock of geese

• group of butterflies and ladybugs

• cows walking on a farm

• pets

  (dogs and cats)

• school of fish swimming

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What do food webs show?

• The flow of energy within one population.

• The habitats of different communities.

• The flow of energy in an ecosystem.

• The cycles of the sun's energy in one species.

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