Human Impacts on the Environment

The fish-eating bird in this food chain likely have the LARGEST _________.

• concentration of DDT
• amount of energy
• biomass
• numbers

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What is biomagnification?

• the increase in biomass at higher trophic levels in an ecosystem
• the increase in concentration of a nonbiodegradable compound at higher trophic levels in an ecosystem
• The chemicals go away as the predator eats its prey
• A pollutant moves up  the food chain and grows larger as the predator eats its prey 

The greenhouse effect affects life on Earth by

• trapping oxygen
• cooling the temperatures
• trapping warmth
• recycling nitrogen

Tags

NGSS.MS-LS2-4

Which member of the food chain is MOST affected by mercury, a fresh water pollutant?algae --> zooplankton--> small fish --> large fish --> hawk

• algae
• zooplankton
• large fish
• hawk

Tags

NGSS.MS-LS2-4

The process of changing free nitrogen into a form that organisms can use them.

• nitrogen formation
• nitrogen fixation
• climate change
• nitrification

Using pesticides like DDT may cause

• healthier teeth
• Eutrophication in lakes
• no effect
• Biomagnification in a food chain

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NGSS.HS-LS2-7

NGSS.HS-LS4-5

Measurements of carbon dioxide correlates fairly closely with the measurements of _____________

• oxygen
• temperature
• nitrogen
• water

Tags

NGSS.HS-ESS2-6

NGSS.HS-LS1-7

NGSS.HS-LS2-5

The build up of toxins in the upper levels of a food chain is called

• autrophism
• biomagnification
• heterotrophy
• respiration

Tags

NGSS.MS-LS2-3

Eutrophication is caused by

• runoff of excessive fertilizer and nutrients
• cleaning up waterways
  
• using nuclear energy
• using solar energy

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

When excess nutrients make their way into the waterways,

• fish populations increase
• algal blooms increase
• frog population increases
• people get more vitamins in their water

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4