Energy In Ecosystems Flashcards
1
Q
What is energy in ecosystems
A
Energy is passed on from one organism to the next in a food chain
2
Q
Energy lost
A
90% of energy is lost
10% is carried on
3
Q
How is energy lost
A
- heat
-movement
-undigested materials
4
Q
What is the small amount of energy carried on used for
A
This energy is used for growth
5
Q
Pyramid of numbers
A
A pyramid of numbers shows the total number of organisms at each level in the food chain
6
Q
Irregular pyramid of numbers
A
A pyramid of numbers does not always have a regular pyramid shape
7
Q
Pyramid of energy
A
A pyramid of energy shows the energy available at each level of a food chain.
A pyramid of energy will always have a regular pyramid shape largest-smallest.
This is because energy is lost at each level
