Which of the following statements about viruses is false? a. vaccines are available to prevent several diseases caused by viruses. b. if a virus mutates, the immune system may not recognize the virus. c. the widespread use of antibiotics has led to resistant strains of viruses. d. people can get colds and flus again because the viruses are constantly mutating.

option C - The widespread use of antibiotics has led to resistant strains of viruses.

Explanation:

Antibiotics are substances (usually drugs) that can destroy or inhibit the growth of BACTERIA and similar microorganisms.

Do note that viral infection DO NOT respond to antibiotic treatment.

So, it is FALSE to say that the widespread use of antibiotics has led to resistant strains of viruses

b. the carbon cycle ensures living things have a source of hydrogen

when it is at an intermediate population density