Principles of Ecology

Which of the following can be both primary and secondary consumers?

• detritivores

• herbivores

• carnivores

• omnivores

Tags

NGSS.MS-LS2-2

Chemosynthesis is the process in which organisms

• form carbohydrates using chemicals.

• get energy by eating other organisms.

• use energy from the sun to form carbohydrates.

• make chemicals that absorb sunlight.

A model that shows a single sequence of feeding relationships is called a

• food web

• food chain

• feeding chain

• trophic level

Tags

NGSS.MS-LS2-3

Which of the following provide most of the energy in ecosystems?

• keystone species

• carnivores

• producers

• generalists

Tags

NGSS.MS-LS2-3

Decomposers are important to ecosystems because they

• can act as omnivores.

• capture energy from the sun.

• are producers.

• return vital nutrients back to the environment.

Tags

NGSS.MS-LS2-3

Food webs are models that show

• Only primary consumers in an ecosystem.

• Networks of feeding relationships.

• Stored energy in food chains.

• One sequence of producers and consumers.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

A food chain contains oak trees (producer), mice (herbivore), black rat snakes (carnivore), and bald eagles (carnivore). How many trophic levels does this food chain have?

• four

• three

• two

• one

Tags

NGSS.MS-LS2-3

Giant pandas eat bamboo almost exclusively. For this reason, giant pandas are an example of a(n)

• carnivore

• omnivore

• generalist

• specialist

The temperature, rainfall, and soil/sand in an ecosystem would all qualify as

• a whole ecosystem

• abiotic factors

• biotic factors

• living things

Tags

NGSS.MS-LS2-3

A group of gray wolves living in Minnesota is an example of

• a community

• a biome

• an ecosystem

• a population