Which statement is true regarding keystone species in an environment?

The question is not complete, the options are not given.

But the correct answer is.

They are likely symbiotic with the dorminant species.

Explanation:

A keystone species is a species which has disproportionately large effect on the communities it hold together by maintaining the biodiversity of the ecosystem and causing the abundance of other organisms present in the ecosystem. They play a role in the existence of species present in their environment.

The tree types of keystone species are predators, mutualist and ecosystem engineers.

answer: c. two haploid cells

explanation:

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides