Answer:
the first one is A and the second one is either B or C, sorry I could not be more sure about my answer on that second one
Explanation:
Just trust me please
Microscopes made it possible to learn more about single-celled organisms.
B-cells fight bacteria and viruses by making Y-shaped proteins called antibodies, which are specific to each pathogen and are able to lock onto the surface of an invading cell and mark it for destruction by other immune cells
I think to protect oneself from possible blood borne pathogen transmission when providing care it is important to use PPE such as disposable gloves, breathing barrier or mask. PPE is an abbreviation for personal protective equipment; they are equipment that will protect the user against health or safety risks at work. They may include items such as safety helmets, gloves, eye protection, high-visibility clothing, safety footwear and safety harnesses.
