Numbers of Organisms and Diversity of Species Decrease as Depth

Q14: Sessile organisms live attached to the seafloor.

Q15: Algae form the base of the trophic

Q16: Few algae are found growing on gravel

Q17: Large benthic algae (seaweeds) have holdfasts that

Q18: Common deep-sea vent communities include all of

Q20: Eel grass is a marine plant.

Q21: Zooxanthellae are highly specialized cyanobacteria that form

Q22: Episodes of coral bleaching have become more

Q23: Intertidal communities have low productivity because of

Q24: Animals that burrow into the seafloor are