NC 5.L.3

List 3 biotic factors in an ecosystem.

List 3 abiotic factors in an ecosystem.

Tags

NGSS.MS-LS2-3

A stable ecosystem is one where

• the population numbers of each organism change at a predictable rate

• the supply of resources in the physical environment changes at a predictable rate

• energy flows through the ecosystem at a fairly constant rate over time

• All of the above

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NGSS.MS-LS2-3

Animals use oxygen in the process of _______________ and make more CO2.

• photosynthesis

• cellular respiration

Animals and plants cannot directly use all of the nitrogen found in our atmosphere.

• True

• False

Which is true of the relationship between the grass and lion?

• The grass is the consumer and the lion is the producer.

• As the grass population increases, the lion population increases.

• As the grass population decreases, the lion population increases.

• As the grass population increases, the lion population remains

  the same.

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NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following is in order from largest to smallest?

• ecosystem – community – population – organism

• ecosystem – population – community – organism

• ecosystem – community – organism – population

Which of the following is a density-dependent limiting factor?

• human activities

• migration

• natural disaster

• unusual weather

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NGSS.MS-LS2-4

Which of the following is a density-independent limiting factor?

• predation

• natural disaster

• parasitism

• disease

The figure shows the zones of the ocean. Coral reefs require sunlight because reef-building coral contain photosynthetic algae in their tissues. The reefs must sit on the ocean floor for support and must remain underwater to survive. In which ocean zone does a reef most likely thrive?

• oceanic zone

• benthic zone

• neritic zone

• intertidal zone

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3