Answer:
Viruses can only replicate themselves by infecting a host cell and therefore cannot reproduce on their own.
Explanation:
Answer:
Both deal with habits of exercise, sleep, rest, and recreation.
Explanation:
Answer:
Racism
Explanation:
Racism is a social evil that has been prevailing since the start of mankind. It is a biasing against the people belonging to a particular group in the society where they are treated as inferior and the other people are considered superior to them.
These distinctions are because of the following factors – color of skin, languages, customs and rituals, birth place etc. The western world has been very racist against the non-westerners.