Read the given passage and answer the questions that follow:-
Biosphere reserves are multipurpose protected areas that are meant for preserving genetic diversity in representative ecosystems of various natural biomes and unique biological communities by protecting wild populations, traditional life style of tribals, and domesticated plant/animal genetic resources. Each biosphere reserve has three zones-core, buffer, and transition zone.

Biosphere reserves differ from national parks and wildlife sanctuaries because in the former

People are an integral part of the system.

A biosphere reserve is a particular land or marine protected area where all life types, including plants, insects, microbes, and humans, are conserved. In order to protect the species, national parks and wildlife sanctuaries are created and the biosphere is a global ecosystem made up of living creatures. Biosphere reserves are insufficient without individuals and individuals to play an important role. In national parks and sanctuaries, there is limited human interaction. Humans are not an important part of them.