Biomagnification

Historically, _____ caused problems for birds because it made their eggs _____.

• 1. PCBs, too thin

• 1. PAHs, too thick

• 1. mercury, deformed

• 1. DDT, too thin

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-5

How does biomagnification put a top predator at a disadvantage?

• Food is much harder to find the farther up the food chain you go.

• Toxins and chemicals accumulate in the bodies of everything that was eaten by the food that you eat.

• Toxins and chemicals bind to the tissue of larger animals better than smaller ones.

• The loss of energy up the food chain is directly proportional to the amount of toxins taken up by the body.

Tags

NGSS.MS-LS2-4

Accumulation of pollutants at successive levels of the food chain.

• water pollution

• thermal pollution

• biomagnification

• artificial eutrophication

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Identify the process shown in this diagram.

• Extinction
• Toxin Accumulation
• Pollution
• Biomagnification

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What do the small dots in the picture represent?

• DDT 
• Food
• Energy
• Biomass

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which organism in this diagram has the highest DDT concentration?

• Zooplanktons
• small fish
• large fish
• Fish-eating birds

One of the first widely used pesticides produced and was widely used because it was cheap, remained active for a long time, and killed many insect considered pests.

• Baygon
• Pyrethroids
• Raid
• DDT

Tags

NGSS.MS-PS1-3

What process does this picture describe?

• ocean acidification

• biomagnification

• marine toxins

• bioaccumulation

Tags

NGSS.MS-LS2-3

Which organism in the food web shown would

contain the lowest concentration of chemical pollutants?

• producers

• primary consumers

• secondary consumers

• tertiary consumers

Tags

NGSS.MS-LS2-3

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-LS2-4