Biodiversity in Ecosystems Quiz

What does biodiversity describe in an ecosystem?

• The pollution levels

• The variety of living things

• The climate

• The size

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Why is it important for an ecosystem to maintain biodiversity?

• Pollution

• Food Webs

• To keep ecosystems healthy

• To keep ecosystems small

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What do plants and animals compete for in an ecosystem?

• Toys

• Space, air, water, and food

• Light from the moon

• Education

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What helps to keep an ecosystem healthy?

• Having no plants

• Keystone species and variety of organisms

• Having no water

• Having only one type of organism

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What does a food web show in an ecosystem?

• The types of plants in an ecosystem

• The transfer of energy in an ecosystem

• The number of animals in an ecosystem

• The water sources in an ecosystem

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What indicates the transfer of energy and matter in a food web?

• The color of the organisms

• The size of the organisms

• The arrows in the food web

• The location of the organisms

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What role do keystone species play in an ecosystem?

• They decrease the ecosystem's balance

• They have no significant role

• They help keep the system in balance

• They increase pollution

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What role does the species shown in the image have in the tide pool ecosystem?

• Bioindicator

• Food Web

• Keystone Species

• Omnivore

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Which organism is the keystone species in underwater kelp forests?

• Sea star

• Sea otter

• Shark

• Whale

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What can happen if a keystone species is removed from an ecosystem?

• The ecosystem will remain unchanged

• The ecosystem may collapse

• New species will immediately replace the keystone species

• The climate of the area will become cooler

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