In hydrothermal vent ecosystems, tubeworms and giant ________ depend entirely on sulfur-oxidizing archaea that live symbiotically within their tissues.
A) clams
B) corals
C) crabs
D) lobsters
E) mussels
Question 2
Gray whales are members of which of the following orders?
A) Carnivora
B) Cetacea
C) Chiroptera
D) Rhenanida
E) Sirenia