What is the main source of energy for most ecosystems?

Energy Flow and Matter Cycling in Ecosystems

Interactive Video
•
Biology, Physics, Science
•
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
The wind
The moon
The sun
The ocean
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the law of conservation of mass, what happens to matter in an ecosystem?
It is created and destroyed
It is only created
It is neither created nor destroyed
It is only destroyed
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are primary producers in an ecosystem?
Organisms that decompose dead matter
Organisms that live in water
Organisms that produce energy from the sun
Organisms that consume other organisms
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a primary consumer?
Grasshopper
Snake
Alligator
Owl
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the difference between a food chain and a food web?
A food chain includes all organisms in an ecosystem
A food web is a linear sequence of organisms
A food web consists of multiple interacting food chains
A food chain is more complex than a food web
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What factors can impact the size and scope of a food web in an ecosystem?
Water, temperature, and sunlight
Rock type, air pressure, and gravity
Wind, soil type, and altitude
Animal size, plant color, and humidity
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the 10% rule in energy transfer state?
10% of energy is stored in the environment
10% of energy is created at each trophic level
10% of energy is transferred to the next trophic level
10% of energy is lost at each trophic level
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