
Ecosystem Dynamics and Energy Flow

Interactive Video
•
Biology, Science
•
9th - 12th Grade
•
Hard

Jackson Turner
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an ecosystem composed of?
Only living organisms
Only non-living components
Living organisms and their interactions with non-living components
Only plants and animals
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a biotic factor?
Water
Soil
A squirrel
Sunlight
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the first law of thermodynamics, energy can be:
Neither created nor destroyed, only transferred
Only destroyed
Only created
Created and destroyed
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to an organism with a net loss of energy?
It becomes more efficient
It loses mass and may eventually die
It stores energy
It grows
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which organisms use external sources to regulate their body temperature?
Endotherms
Ectotherms
Autotrophs
Heterotrophs
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary source of energy for ecosystems?
Chemical reactions
The sun
Primary consumers
Decomposers
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the efficiency of energy transfer between trophic levels?
90%
10%
25%
50%
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