The most direct ancestors of land plants were probably

Why do you think water is so important to living things

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?

If you have a difficult time knowing where your hand is without looking at it you may be having a problem with your what ?