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Health, 18.02.2021 18:20 madleneinejessup

Question 1 (1 point) Invasive species are species that have a impact on a given ecosystem.

Question 1 options:

native, positive

non-native, neutral

non-native, positive

non-native, harmful

Question 2 (1 point)
Select all that apply.

Check all that characteristics of zebra mussels.

Question 2 options:

lives in cool water

the size of a hand

can attach to any surface

filter feeders

Question 3 (1 point)
The zebra and quagga mussels arrived to the Great Lakes in the ballast water of a container ship from:

Question 3 options:

Norway

Europe

Africa

Australia

Question 4 (1 point)
20% of the world's fresh water is found in the Great Lakes.

Question 4 options:
True
False
Question 5 (1 point)
Select all that apply.

In what ways do zebra and quagga mussels change the ecosystem?

Question 5 options:

compete with other organisms for food

consume huge amounts of algae, which leaves little food for other organisms

increase the temperature of the water

lake water becomes clearer, allowing sunlight to penetrate deeper and creating more aquatic plant growth

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Answers: 3

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Question 1 (1 point) Invasive species are species that have a impact on a given ecosystem.
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