
Ecosystem Challenges and Biomagnification
Authored by Caleb Bahner
Biology
9th - 12th Grade
NGSS covered
Used 2+ times

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37 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The accumulation of heavy metals or other pollutants causes
a decline in the population of predatory birds because –
heavy metals make it difficult for the birds to hunt
pesticides diminish the amount of available food
the pollutants interfere with bird reproduction
Tags
NGSS.MS-LS2-4
NGSS.MS-LS2-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chemical pesticides tend to be used in terrestrial ecosystems, but they are commonly found in the tissues of aquatic organisms. Because of this, birds and other animals with a diet high in fish commonly suffer the effects of biological magnification. How do these pesticides end up in these aquatic ecosystems?
Pesticides evaporate and are delivered to water sources by rainfall
Land animals containing pollutants die and decompose in waterways
Pesticides are carried to water sources by freshwater runoff.
Tags
NGSS.MS-LS2-4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Algae grow rapidly when certain nutrients are added to the water supply causing an algal bloom. Eutrophication describes the process of adding nutrients to the water supply. What human activity is most responsible for the eutrophication that leads to algal blooms?
Burning fossil fuels
Disposing of pesticides
Fertilizer for food crops
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which organism shown in the food chain above would contain the greatest concentration of chemical pollutants?
phytoplankton
krill
tuna
shark
Tags
NGSS.MS-ESS3-4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Most health experts recommend only eating tuna a few times a week and only eating shark a few times a month. Why would health experts have this view of eating these fish?
Hint: think biomagnification
Most fish are low in protein and high in saturated fats which can cause health problems
People with diets high in fish tend to have high blood pressure and heart issues
Eating these fish could result in the buildup of pollutants in the fat tissue of humans
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