A22-year-old man is hypotensive and tachycardic after a shotgun wound to the left shoulder. his blood pressure is initially 80/40 mm hg. after initial fluid resuscitation his blood pressure increases to 122/84 mm hg. his heart rate is now 100 beats per minute and his respiratory rate is 28 breaths per minute. a tube thoracostomy is performed for decreased left chest breath sounds with the return of a small amount of blood and no air leak. after chest tube insertion, the most appropriate next step is:

Which organelle releases chemicals that break down large food particles into smaller ones?

How can you tell the difference between rough er from smooth er?

Ascientist is investigating the effects of salinity on fish development. he places fertilized fish eggs in an aquarium that contains low salinity and observes their development. what factor would improve experimental design the most? place the fish eggs in the open ocean because that is the natural habitat include another aquarium that has normal salinity to compare to the low salinity aquarium include an aquarium that replaces salt with sugar to confirm that the effects are specific to salt grow algae with the fish eggs in order to provide adequate nutrients to the developing embryos