What do stem cells have the ability to do that is different from other cells in the
body?

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?

What the theory that the sun goes around earth was replaced with the theory that earth goes around the sun this was an exaple of a

When a person is exercising the body needs to deliver increased amounts of oxygen to the muscles which component of blood ensures that the muscles will receive it