GRE Reading Comprehension: ETS-GRE阅读ETS - P3P46K077J18G1IZ7

The information in the passage suggests that the majority of deep-sea faunas that live in nonvent habitats have which of the following characteristics? A. They do not normally feed on particles of food in the water. B. They are smaller than many vent faunas. C. They are predators. D. They derive nutrition from a chemosynthetic food source. E. They congregate around a single main food source.