Unit 3 Topic 4 - Energy In Ecosystems Flashcards
1
Q
How is energy lost through a food chain?
A
when a consumer eats food a large amount of that energy is lost through undigested waste material
2
Q
What are 3 ways energy is lost?
A
• movement
• heat
• undigested waste
3
Q
approximately how much energy is lost each time it moves along a food chain?
A
90%
4
Q
In a pyramid of numbers…
A
the width of each bar represents the number of organisms at that level
5
Q
A pyramid of energy…
A
Is the most accurate way of representing levels of a food chain bc it shows the total energy available at each level
6
Q
A pyramid of biomass…
A
shows the total mass of organisms at each level of the food chain
