

Ecological Efficiency and Energy Flow
Interactive Video
•
Biology, Science, Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary source of energy for ecosystems on Earth?
Volcanoes
The Sun
Wind
The Moon
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which process do plants use to convert sunlight into chemical energy?
Respiration
Photosynthesis
Chemosynthesis
Fermentation
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main difference between gross primary productivity and net primary productivity?
Net is always higher than gross
Gross is always higher than net
Net includes respiration, gross does not
Gross includes respiration, net does not
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which biome is known for having the highest productivity?
Savanna
Tropical Rainforest
Tundra
Desert
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does seasonal change affect net primary productivity?
It varies with sunlight availability
It increases in winter
It decreases in summer
It remains constant throughout the year
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In an ecological pyramid, what percentage of energy typically transfers from one trophic level to the next?
100%
10%
1%
50%
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role do decomposers play in an ecosystem?
They store energy
They recycle nutrients
They consume primary producers
They produce energy
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