Which Could Be a Topic for a Community-Level Study of a Hydrothermal

Multiple Choice

Which could be a topic for a community-level study of a hydrothermal vent ecosystem?

A) the genetic relationships between crabs at the vent and other areas of the ocean
B) the evolution of a certain species of bacteria in response to the changing composition of the water emitted by the hydrothermal vents
C) the composition of the water emitted by hydrothermal vents
D) the interactions between crabs and other species near hydrothermal vents