Question

select the word that means showing a great deal of variety. nematodes, or roundworms, make up one of the largest groups of animals on the planet. biologists have identified over twenty thousand species of nematodes but estimate that there may be over a million species. nematodes are found in diverse environments. in fact, they can live in almost any habitat on earth, including soil, saltwater, and freshwater. some nematodes, such as heartworms and hookworms, can even live inside other organisms as parasites.

Explanation:

The question asks for the word meaning "showing a great deal of variety". Looking at the passage, the word "diverse" is used to describe the environments nematodes live in, and it matches the definition provided.

Answer:

diverse