What is the time machine hidden in every human being in evolution? ?

what are the choices?

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.

the species living around the vents are especially good at dispersal.  

deep-sea vent originates on the floor of the ocean when seawater circulates through hot volcanic rocks, usually situated where the new oceanic crust is being produced.  

biological dispersal refers to the movement of species from their location of birth to their site of breeding, or from breeding site to another. similarly, the oceanic dispersal refers to the movement of the species from one land mass to another by sea crossing.