What do organisms cluster around in the ocean floor?
kalenchoes ferns bacteria Chimneys an object alveoli graptolites allow growth
A B C D E F G H
Chimneys top some hydrothermal vents.
Organisms cluster around chimneys  in the ocean floor.
What do organisms cluster around in the ocean floor? (A) kalenchoes (B) ferns (C) bacteria (D) Chimneys (E) an object (F) alveoli (G) graptolites (H) allow growth