You may need to conduct your own research to answer the following questions.

Extension Question 1

Distinguish between something that is dead and something that is non-living.

Extension Question 2

Some sources state the ‘C’ in MRSCGREN stands for circulation.

• Give an example of a substance that is circulated around an animal.

• Give an example of a substance that is circulated around a plant.

Extension Question 3

Most scientists consider viruses to be non-living. Give some reasons why they are considered as non-living, with respect to the characteristics of living things.