
These Trees Eat Salmon!
Interactive Video
•
Science, Biology, Other
•
11th Grade - University
•
Practice Problem
•
Hard
Wayground Content
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do trees on the West Coast of North America obtain nutrients from salmon?
Trees absorb nutrients from the ocean.
They catch salmon with their branches.
Bears catch salmon and leave scraps that decompose.
Salmon directly fertilize the trees.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the limiting nutrient for trees along the northwest coast of North America?
Nitrogen
Calcium
Potassium
Phosphorus
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do salmon have a higher concentration of nitrogen-15 compared to land animals?
They consume a lot of plants.
They spend most of their life in the ocean and are high in the food chain.
They are at the bottom of the food chain.
They live in freshwater.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What did researchers discover about trees near salmon streams in Alaska?
They grow smaller than trees without salmon nutrients.
They have lower levels of nitrogen-15.
They do not benefit from salmon nutrients.
They have high levels of nitrogen-15 and grow larger.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How much bigger do trees grow when they receive nutrients from salmon?
30% bigger
25% bigger
10% bigger
19% bigger
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