The correct answer is D. RAMP because you use a ramp to reduce the amount of force needed to that work force. Hope This Helps!
Answer:
option B is the correct answer
Explanation:
AGAU
What is a virus ?
Viruses are not made out of cells. A single virus particle is known as a virion, and is made up of a set of genes bundled within a protective protein shell called a capsid. Certain virus strains will have an extra membrane (lipid bilayer) surrounding it called an envelope.
