They have a spine
hope it helps
Do you mean REM? If so it’s an abbreviation for Rapid Eye Movement; the deepest point in your sleep where dreams occur.
Answer:
cellular respiration breaks down sugars and other molecules to use the stored energy
Earth would basically look like the Moon; minus the craters, of course. This is because with no atmosphere to hold all of the Oxygen near the surface, all life would die off fairly quickly.
Answer: With the development of powerful microscopes, scientists discovered many single-celled organisms that didn't fit into any of Linnaeus' kingdoms. As a result, a new taxon, called the domain, was added to the classification system.
Explanation:
