Question

species diversity, genetic diversity, and ecosystem diversity are all parts of an ecosystem. these three factors make up what part of an ecosystem? biodiversity niche

Explanation:

Biodiversity is defined as the variety of life in an ecosystem, which includes species diversity (variety of species), genetic diversity (variety of genes within species), and ecosystem diversity (variety of ecosystems). A niche refers to the role an organism plays in an ecosystem, so it does not match the description of the three factors.

Answer:

A. Biodiversity