What are the two main processes that keep ecosystems running smoothly?

Ecosystem Energy and Matter Dynamics

Interactive Video
•
Biology, Science, Chemistry
•
6th - 8th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Energy flow and matter cycling
Photosynthesis and respiration
Migration and hibernation
Predation and competition
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary source of energy in a food chain?
The sun
Producers
Consumers
Decomposers
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What percentage of energy is typically transferred from one trophic level to the next in a food chain?
50%
1%
100%
10%
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the energy that is not transferred to the next level in a food chain?
It is recycled back to the sun
It is stored in the organism
It is converted into matter
It is used for the organism's life processes or lost as heat
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What could be a consequence of a disease that reduces plant populations in a forest?
Stability in the ecosystem
Increase in plant diversity
Decrease in predator populations
Increase in herbivore populations
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does matter move through an ecosystem?
In a straight line
Only through water
In cycles
Randomly
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which cycle involves the process of photosynthesis and respiration?
Oxygen cycle
Carbon cycle
Water cycle
Nitrogen cycle
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