BIO LT 8.3 Review

Where does energy originate in the flow of energy through ecosystems?

• The Moon

• The Sun

• The Ocean

• The Wind

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the role of decomposers in the trophic levels?

• Produce energy

• Consume plants

• Break down dead material

• Hunt prey

Tags

NGSS.MS-LS2-3

What is the primary source of energy for producers in an ecosystem?

• Soil

• Water

• Sunlight

• Wind

Tags

NGSS.MS-LS1-6

Which of the following best describes autotrophs?

• Organisms that rely on others for food

• Organisms that can produce their own food

• Organisms that live in water

• Organisms that are always animals

Tags

NGSS.MS-LS2-3

Which term describes organisms that cannot produce their own food?

• Autotrophs

• Heterotrophs

• Phototrophs

• Chemotrophs

What is a saprotroph?

• An organism that absorbs dead or decaying matter and breaks it down

• An organism that produces its own food through photosynthesis

• An organism that preys on other living organisms

• An organism that lives in symbiosis with plants

Tags

NGSS.MS-LS2-3

In a food web, which organism is a primary consumer?

• Grass

• Rabbit

• Mushroom

• Tree

How is energy transferred between organisms in an ecosystem?

• Energy is created by each organism on its own without any help.

• Energy is transferred when one organism eats another, like when a rabbit eats plants and then a fox eats the rabbit.

• Energy is not transferred between organisms; each one makes its own energy from sunlight.

• Energy only moves through plants and not through animals.

Tags

NGSS.MS-LS2-3

If a drought causes the stream to run dry one year, how will this likely impact the black bear population?

• The salmon population will increase, and the bear population will increase.

• The salmon population will decrease, and the bear population will increase.

• The salmon population will decrease, and the bear population will decrease.

• The salmon population will increase, and the bear population will decrease.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

If there is 1000 Kcal available at the producers level, how much energy is available in the primary consumers level?

• 100 Kcal

• 10 Kcal

• 1 Kcal

• 1000 Kcal

Tags

NGSS.MS-LS2-3