Answer:
A. Fulcrum is between the pull and the load
Explanation:
In the first class levers, the Fulcrum is present between the force or effort and the load. Pliers, scissors, a crow bar, a claw hammer, a see-saw and a weighing balance are the examples of first class levers in which the fulcrum exists in the center while the effort is located at one side and the load is present on the other side of the fulcrum.
The hepatitis one...I think. if you know for sure I an wrong then it's definitely the first one about HIV
Cardiovascular so you can pump oxygenated blood through the heart
Metabolic reactions are chemical reactions that occur within the body to release usable energy. Making the proteins, generation of energy and di<span>sposal of waste are all chemical processes that in total are referred to as your metabolism.
</span>
<span>During this chemical process the fuel in the food
we eat is converted into the energy needed to power everything we do.The chemical reaction is controlled by specific proteins in the body.</span>
There is nothing to choose from?