Impact of Human Activities on the Environment

Choose what would happen if one of the populations of organisms in a food web became overpopulated.

• Food supply would increase

• Food supply would decrease

• More competition for resources

• New organisms would come to the ecosystem

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

What evidence is there to support that Global Warming is occurring?

• Rising ocean temperatures

• Declining arctic sea glacers

• Sea levels rising

• Increase in carbon dioxide in the atmosphere

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NGSS.MS-ESS3-5

What is the role of a decomposer in an ecosystem?

• Provide nutrients back into the ecosystem through their waste

• Provide balance in the populations of plants and animals

• Reduce the amount of waste in the ecosystem

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NGSS.MS-LS2-3

Sunlight, pH of water, temperature, rocks, soil and air would all be ____________.

• Biotic 
• Abiotic
• Ecosystems
• Habitats

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NGSS.MS-LS2-3

Carrying Capacity

• Stronger organisms survive but weaker organisms die out.

• A change in organisms to help them survive, but does not change the species of the organism.

• A characteristic of an organism that has a much higher chance of being passed from parents to their young.

• The highest number of organisms that can exist in an ecosystem before becoming too many for the resources around.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What are the nonliving parts of an ecosystem called?

• Abiotic

• Biotic

• Species

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NGSS.MS-LS2-3

What is one way humans are trying to positively impact the ocean?

• Fishing

• Creating artificial reefs

• Harvesting oil and natural gas

• Transporting goods in ocean vessels

Tags

NGSS.MS-LS2-5

True or False: An organism can be added to a food web without other organisms being affected

• False
• True

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NGSS.MS-LS2-4

NGSS.MS-LS2-3

NGSS.MS-LS2-2

Select the natural disturbance to an ecosystem

• Clearing land for a new intersection.

• Cutting down trees in a forest for wood to build houses.

• A hurricane's strong winds blowing trees.

A student wants to investigate competition between two organisms. For the investigation, it is most important that the student should choose organisms that –

• reproduce at a faster rate.

• are both active during the night.

• have the different adaptations.

• require the same resources.

Tags

NGSS.MS-LS2-1