Is the variety of life on earth, on both the species and genetic levels. a) biodiversity b) biome c) biosphere d) speciation

Biodiversity is the variety of life on Earth, on both the species and genetic levels.
Biodiversity deals with the variety of life on Earth. Biome deals with organisms that have a similarity for the environment they live in. Biosphere is known as the sun of all ecosystems. Speciation is the process in evolution of a new organism.
So A, Biodiversity.

The answer is a, biodiversity means a large variety 

Bhope this : )

The main role of dna in the  cell is the long-term storage of information. it is often compared to a blueprint, since it contains the instructions to construct other components of the  cell, such as  proteins  and rna molecules.the main function of rna is to carry information of amino acid sequence from the genes to where  proteins  are assembled on  ribosomes  in the  cytoplasm. mark brainliest, my work is good.