I am a relatively slow-acting (but long-lasting) chemical messenger carried throughout the body by the bloodstream. What am I

20 points asap! question 1 - in your own words, explain the scientific evidence that supports the plate tectonic theory. question 2 - in your own words, explain why the geological structures in florida are different from the geological structures in colorado.

Which would prevent a plant from growing

Sea stars, sea urchins, sand dollars, and brittle stars are all memeber of a group, what is the common name of the group they are all in