Fact 1: Organisms cluster around hydrothermal vents in the ocean floor. Fact 2: Animals at underwater hydrothermal vents are unique. Given the two facts above, what are organisms on the ocean floor?
Possible answers:
(1). conventional
(2). common
(3). unique
(4). protected
(5). parasites
(6). tortoises
(7). normal
(8). bacteria
Answer:
(3).