Answer:
the answer is b. muscular walls of the arteries
Explanation:
The answer is "the ice-caps" from the north and south pole.
Much like a cell, a virus is able to grow and reproduce in large numbers
A virus is a microscopic nonliving parasite that only reproduces inside the cells of living hosts. Like cells, viruses have the ability to grow and reproduce within the host cell. When a virus infects a host cell, it injects its genetic material into the cell and forces the host cell to produce thousands of similar copies of the original virus.
They are found in the body
a chemical landfill is where chemical waste is stored once it has been used
if it is secure it means that the waste cannot pollute the environment through water, air etc
