ST4. Energy in Ecosystems N5 (LOE)

Question 1

What happens in transfers from one level to the next?

Answer 1

The majority of energy is lost as heat, movement or undigested materials

Question 2

How much energy is used for growth?

Answer 2

A very small quantity, therefore is available at the next level in the food chain

Question 3

What does a pyramid of numbers show?

Answer 3

The organisms at each level of a food chain

Question 4

What does a pyramid of energy show?

Answer 4

The total quantity of energy stored in the biomass of organisms at each level of a food chain

Question 5

Why can there be irregular shapes of pyramids of numbers?

Answer 5

So different body sizes can be represented as true pyramids of energy