The variety of life within a particular habitat, often measured by the number of different species is known as

"Biodiversity" would be the appropriate response.

Explanation:

Biodiversity, sometimes referred to as biological diversity, is the spectrum of organisms occurring on Earth although, occasionally, the entire range of life on Earth. The accumulation of species through a region is a general indicator of this diversity, considered species prevalence. Throughout ecosystems, like something from an intricate network, almost all of these plants or animals helping to maintain equilibrium and sustain life.

A) 4 amusingb)alpha particle is a helium nucleus. it contains 2 protons and 2 neutrons.c)alpha particle has charge of +2.