N5 3.4 Energy in Ecosystems Quizs

The diagram below shows a pyramid of numbers. Which letter represents the producer?

• A
• B
• C
• D

What do you call a diagram that shows the population sizes of organisms at each level of a food chain?

• Pyramid of Energy

• Pyramid of Numbers

• Pyramid of Animals

The organisms at the top of a pyramid of numbers are usually..

• least numerous and smallest

• most numerous and smallest

• least numerous and largest

• most numerous and largest

Which of the following is not a way in which energy is lost from a food chain?

• Undigested materials

• Growth

• Movement

• Heat

The diagram represents a pyramid of energy. Why is it a pyramid shape?

• There are fewer organisms at each level in the food chain

• The organisms at level X are very small

• Energy is lost at each level in the food chain

• Energy is stored in each level and not passed

Which food chain is represented by the following pyramid?

• grass -> beetle -> spider -> robin

• oak tree -> greenfly -> ladybird -> blackbird

• plant plankton -> mayfly larvae -> water beetle -> stickleback

• beech tree -> squirrel -> fox

2. On average, 90% of energy is lost at each energy transfer in a food chain. Which of the following is a cause of this energy loss?

• Digested material

• Cell repair

• Movement

• Growth

Which​ type of pyramid can have an irregular shape?​

• Pyramid of Energy
• Pyramid of Numbers

As you go up a pyramid of numbers, the size of the organism generally

• Decreases

• Increases

• Stays the same