To the best of my knowledge, there are only two and they would be ribose and deoxyribose
hope this helps if not just let me know
Birds and mammals independently evolved four-chamber hearts
Doctors would let your body's immune system fight off a bacterial infection. If the infection gets worse, then the doctors would proscribe you with some antibiotics so it'll fight off the harmful bacteria.
This is baby stuff tbh. But it is A. You need water to live. Food to live. Air obviously and a shelter
