
Energy Flow and Trophic Levels
Interactive Video
•
Biology, Science, Other
•
6th - 8th 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 purpose of using diagrams in ecology?
To replace written explanations
To confuse students
To represent the flow of matter and energy in ecosystems
To decorate textbooks
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a food chain, what do the arrows represent?
The size of the organisms
The color of the organisms
The speed of animal movement
The direction of energy and matter flow
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role do decomposers play in a food chain?
They link all steps of the food web by breaking down dead matter
They are top predators
They are secondary consumers
They are primary producers
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does a food web differ from a food chain?
A food web shows all feeding relationships in an ecosystem
A food web is less complex than a food chain
A food web only includes herbivores
A food web is a single linear path
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the best way to construct a food web?
By drawing random lines between animals
By adding one food chain at a time and connecting them
By guessing the relationships
By using only one type of organism
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to energy as it moves up the levels of an energy pyramid?
It decreases
It remains constant
It increases
It doubles
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are food chains typically not very long?
Because there are not enough organisms
Because ecosystems are small
Because energy is lost at each level
Because producers are rare
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