How do flatworms get most of their oxygen? a. gills c. osmosis b. primitive lungs d. diffusion

While carrying a rack of tubes containing blood to be discarded in the biohazard container, jennifer slips and falls. the tubes scatter everywhere, but, fortunately, only three of them break. this accident occurred in the main hallway, so jennifer needs to think fast and get this mess cleaned up. what ppe should jennifer apply?

Me with this i need to get the answer quickly.

What is the hormone in your brain that makes you feel happy?