Which statement(s) is (are) true with respect to the giant vent worms (Riftiapachyptila)?

A) These worms have a complete digestive tract.
B) Nutrients are derived from atrophosome filled with chemolithotrophic bacteria.
C) The worm's hemoglobin transports hydrogen sulfide and oxygen to its symbiont.
D) B and C


Answer: D

Anatomy & Physiology

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