What is true of the gtp-binding proteins that act as molecular switches inside cells?

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?

Someone me with this: a mineral' is determined by its actomic structure.

In the practice of science, this type of reasoning is used to develop explanations.