What name is given to bacteria that are curved or spiral shaped

Using the periodic table, determine which material is most likely a good conductor

There are specialized producers that live in warm water vents deep in the ocean. these producers do not per-form from photosynthesis, but instead perform a similar process with iron and other chemicals. why do you think these producers use this process instead of photosynthesis?

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks