Introduction to Ecosystems

A community of living things interacting with the nonliving parts of their environment

• ecosystem

• food web

• habitat

• niche

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NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

All of the nonliving parts of an ecosystem

• biotic factors

• abiotic factors

• niche

• habitat

Tags

NGSS.MS-LS2-3

All of the living or once living things in an ecosystem, or anything that originates from a living thing.

• biotic factors

• abiotic factors

• niche

• habitat

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NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which of the following are BIOTIC factors? (choose ALL that apply)

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following are ABIOTIC factors? (choose ALL that apply)

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NGSS.MS-ESS2-4

Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.

• mutualism
• commensalism
• competition
• parasitism

Tags

NGSS.MS-LS2-2

Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales.  What kind of relationship is this?

• Mutualism 
• Parasitism 
• Commensalism 

When 2 or more individuals or populations try to use the same resource such as food, water, shelter or sunlight. 

• Coexistence
• Competition
• Cooperation
• Carrying Capacity

Species A feed on Species B's blood to the detriment of Species B.

• Commensalism
• Mutalism
• Parasitism

What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.

• commensalism
• mutualism
• parasitism
• predation

Tags

NGSS.MS-LS2-2