Question

which organisms are the producers at hydrothermal events?
shrimp
crabs
giant clams
bacteria
glant tube worms

Answer 1

At hydrothermal vent ecosystems, the primary producers are **bacteria**, specifically chemosynthetic bacteria. These bacteria utilize the chemicals released from the vents, such as hydrogen sulfide, to produce organic matter through a process similar to photosynthesis but using chemical energy instead of sunlight.

While organisms like giant tube worms and giant clams host these bacteria and depend on them for their nutrition, the bacteria themselves are the ones performing the production of organic material. Therefore, in your list, the correct answer is **bacteria**.