Diversity and Interdependence

What is a niche?

• The habitat that an organism lives in

• An organism’s “role” in an ecosystem

• A type of consumer

• The relationship between a producer and consumer

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If there was a wildfire in the forest that destroyed the plant life, what would happen to the herbivore population?

• Herbivores would decrease due to a lack of food

• Herbivores would increase due to an increase of food

• Herbivores would not be affected

• Herbivores would decrease due to an increase in predators

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If a disease strikes the snakes the rabbits will

• increase

• decrease

• not be affected

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Barnacles grow on whales.  Whales give the barnacles a place to live but the barnacles do not help or harm the whale.  Which type of relationship is this?

• commensalism

• mutualism

• parasitiesm

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NGSS.MS-LS2-2

An organism that needs to eat other organisms to obtain energy is known as a:

• Autotroph

• Producer

• Consumer

• Mutualist

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An illustration that uses arrows to show the MANY possible directions in which matter and energy can pass through the organisms in an ecosystem.

• Food chain

• Food web

• Energy Pyramid

• Succession Map

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What is the most important function of pioneer species?

• To create rocks

• To create soil and add nutrients to the environment 

• To look nice

• Food for animals 

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Which of the following best describes biodiversity?

• The variety of species in a given area

• The number of individuals in a species

• The genetic variation within a species

• The interaction between species

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What is the primary role of decomposers in an ecosystem?

• To produce energy through photosynthesis

• To break down dead organisms and recycle nutrients

• To compete with herbivores for food

• To provide shelter for small animals

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NGSS.MS-LS2-3

In a food web, what would likely happen if a top predator is removed?

• The population of prey species would increase

• The ecosystem would collapse immediately

• The number of producers would decrease

• The biodiversity would remain unchanged

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