Science Unit 3 Lesson 3

What is a habitat?

• the place where an organism lives and can find everything it needs to survive

• the role a plant or an animal plays in its habitat

• all of the living things and nonliving things that surround and affect an organism

• a community of organisms and the environment in which they live

What is a niche?

• the place where an organism lives and can find everything it needs to survive

• the role a plant or an animal plays in its habitat

• all of the living things and nonliving things that surround and affect an organism

• a community of organisms and the environment in which they live

Tags

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Organisms that have a wide niche.....

• can only live in very specific places

• can live in a variety of places

• eat only one or two kinds of food

• eat many foods

Organisms that have a narrow niche.....

• can only live in very specific places

• can live in a variety of places

• eat only one or two kinds of food

• eat many foods

What can happen to a population when a competitor population moves into its environment?

• The population will likely decrease.

• The population will likely increase.

• There will be no effect on the population.

• The competing populations will agree to share the resources.

Tags

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It is important to know the nonliving things as well as the living things in an ecosystem because

• living things compete with nonliving things in the environment.

• living things eat all of the nonliving things in the environment.

• living things depend on the nonliving things in the environment.

• living things do not care about nonliving things in the environment.

Tags

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Animals that hunt, catch, and eat other animals to get the food they need are called

• prey

• organisms

• competitors

• predators

Animals that are hunted, caught, and eaten by other animals are called

• predators

• prey

• organisms

• competitors

Tags

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The resources in an ecosystem are ________________, so organisms ___________________ in order to survive.

• limited

• unlimited

• compete

• cooperate

Tags

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Which two animals compete for the grasshopper?

• rabbits and foxes

• mice and birds

• birds and owls

• foxes and mice

Tags

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