Biomagnification and Food Chains

Chemicals like oil can hurt dolphins

• through biomagnification

• through eutrophication

• by choking them

• because they can not breathe

Tags

NGSS.MS-LS2-4

The phenomenon by which contaninants increase in concentrate at higher trophic levels within an ecosystem is known as...

• Biotoxicity

• Biomagnification

• Eutrophication

• Predation

Which organism in the food web would contain the highest concentration of chemical pollutants?

• producers

• primary consumers

• secondary consumers

• tertiary consumers

Tags

NGSS.MS-LS2-3

Which organism in the food web shown to the right would contain the lowest concentration of chemical pollutants?

• producers

• primary consumers

• secondary consumers

• tertiary consumers

Tags

NGSS.MS-LS2-3

Which type of tissue that is found in greater amounts in

top predators accounts most for the accumulation of chemical

toxins?

• nervous tissue

• fat tissue

• muscle tissue

Consider the following food chain:

Algae > Mayfly > Minnow > Trout

In a polluted ecosystem, which organism would likely have the HIGHEST level of toxic chemicals in its body?

• Algae

• Mayfly

• Minnow

• Trout

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

Toxin concentrations _____________ as you go up the food chain.

• do not change

• increase

• decrease

Identify the process shown in this diagram.

• Extinction

• Toxin Accumulation

• Pollution

• Biomagnification

Which organism in this diagram has the highest DDT concentration?

• Zooplanktons

• small fish

• large fish

• Fish-eating birds

Tags

NGSS.MS-LS2-4

If a toxin was introduced to the water of an aquatic ecosystem. Which organism would have the highest accumulation of the toxin in their tissues?

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4