Endangered species are a concern to conservationists because there’s a risk that the animals won’t be able to adapt to their environment. one main cause of the inability to adapt is a)low genetic diversity b)a high rate of genetic mutation c)reproduction with an unrelated mate. both natural forces and human activities cause the endangerment of species. one situation that can be caused by both nature and humans is a)forest fires b)the burning of fossil fuels c)the removal of trees for lumber .

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.