Ecology: Bio-magnification/Human Impact

What are renewable resources?

• Resources that are used faster than they form

• resources that can replenish themselves over time

• resources that formed over millions of years

• resources that exist only in rural areas

Which level of the food chain is most affected by biomagnifications?

• Producers

• primary consumers

• secondary consumers

• tertiary consumers

Which member of the following food chain is most affected by DDT, a pollutant?

Algae --> small fish --> medium fish –-> hawks

• algae

• small fish

• medium fish

• hawks

Tags

NGSS.MS-LS2-4

Why is an invasive species likely to survive in a new environment?

• A lack of predators

• An abundance of predators

• A lack of food

• A lack of space

Tags

NGSS.MS-LS2-4

What is one of the greatest threats to biodiversity on Earth?

• habitat destruction

• loss of drinking water

• decrease in food supply

• biomagnification

Tags

NGSS.MS-LS2-5

What is the cause of acid rain?

• Combustion

• Deforestation

• Water run off

• Bio-magnification

Tags

NGSS.MS-PS1-2

What is Biodiversity?

• sum total of all the similar species found in an ecosystem

• total of differences in the same species in an ecosystem

• the variety of different organ systems within multicellular organisms

• sum total of all the different species found in an ecosystem

Tags

NGSS.MS-LS2-5

What is Biomagnification?

• the growth of an organism over time

• the increase in concentration of harmful chemicals in organisms at higher levels in the food web

• the increase in population of a species over time

• the increased significance of a species roll in an ecosystem

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

What is one way we can reduce human impact on the environment?

• Increase the use of CFCs

• Increase pollution prevention

• Decrease the use of conservation

• Decrease Endangered Species Protections

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

The ozone layer protects against radiation. Radiation can lead to which of the following:

• decreasing Earth's temperature

• reducing risk of cancer

• limiting the amount of CO2 in the air

• causing mutations in DNA

Tags

NGSS.MS-LS3-1