Biology

The correct answer is B.Preserving the variety of life forms and their interactions.

The primary focus of maintaining biodiversity is to preserve the variety of life forms (species, genes, ecosystems) and the interactions between them. Biodiversity is critical because it supports ecosystem functions such as nutrient cycling, pollination, water purification, and climate regulation, all of which are essential for the health of the planet and human well-being.

Here's why the other options are not correct:

A.Increasing the number of individuals in a species is important for species conservation, but biodiversity encompasses much more than just individual species populations. It also involves the variety of species, genetic diversity, and ecosystems.

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