Why is it important to classify living organisms?

It is necessary to classify organisms because classification allows us to understand diversity better. It helps in the identification of living organisms as well as in understanding the diversity of living organisms. Classification helps us to learn about different kinds of plants and animals, their features, similarities and differences.

Explanation:

organisms that are both used in toothpaste as well as cause malaria are protista and monera.

it has one origin of replication, but it proceeds in two directions - d)