Life on Earth - 3.4 Energy in ecosystems

Question 1

Describe energy transfer in the food chain ?

Answer 1

Energy is transferred when on organism ingests another. energy is lost as you move up the food chain

Question 2

How can energy be lost in the food chain ?

Answer 2

Heat
Indigested food
movement

Question 3

What is a pyramid of energy ?

Answer 3

A pyramid of energy shows the total quality of available energy stored in the organisms at each level in the food chain of an ecosystem per year

Question 4

What is a pyramid of numbers ?

Answer 4

Pyramid of numbers show the total number of individual organisms at each level in the food chain of an ecosystem

Question 5

What is the comparison of pyramids of numbers and energy ?

Answer 5

A pyramid of energy shows the energy gained by various organisms in a food chain whereas pyramids of numbers show the number of organisms at each level in the food chain of an ecosystem