Biodiversity constributes to the sustainability of an ecosystem because_

Explanation: The two factors that contribute to biodiversity are the richness in the number of different species available in the ecosystem, or the richness in the number of individuals of the one species. This is because each species has a role in the ecosystem on which other organisms depend for survival

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.