Unit 10 Ecology review

Which of the following is a biotic factor found in an ecosystem?

• plants
• water
• sunlight
• rocks

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

NGSS.MS-LS1-4

Which scenerio is an example of a mutualistic relationship between two organisms?

• A lion hunting a zebra
• A snake eating a mouse
• A parasite feeding on a host
• A bee pollinating flowers

Bears eat berries and salmon. Bears are ...

• producers

• carnivores

• omnivores

Tags

NGSS.MS-LS2-3

In a food chain, what do we call the organism that makes its own food?

• Consumer

• Decomposer

• Producer

• Predator

Which of the following best describes the role of decomposers in an ecosystem?

• They produce their own food through photosynthesis.

• They consume living plants and animals.

• They break down dead organisms and recycle nutrients back into the ecosystem.

• They compete with primary producers for sunlight.

Tags

NGSS.MS-LS2-3

If the secondary consumer level has 200 kcal available to it, how much energy was captured by the producers during photosynthesis?

• 2 kcal

• 200 kcal

• 200,000 kcal

• 20,000 kcal

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which organism do the owl and the weasel compete for in the food web?

• Hawk

• Spider

• Grasshopper

• Shrew

Tags

NGSS.MS-LS2-2

A living or once-living organisms in an ecosystem is a

• population
• biotic factor
• abiotic factor
• community

Tags

NGSS.MS-LS2-4

What would happen if their were no producers?

• Every population would grow larger

• Everything would die out

• The animals would make their own food

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

NGSS.MS-LS2-4

Which of the following is an example of a parasite?

• A flea

• An orchid

• An Egyptian plover

• The bacteria that live in human intestines