Question

Which of the following statements concerning viruses and human health is false?

Question 11 options:

	many viral diseases can be controlled through vaccinations
	most viral infections are difficult to treat, but they can be finally destroyed by antibiotics
	in many disease caused by viruses, the virus attacks cells as it reproduces
	some viruses can remain dormant in the body for years before disease symptoms appear

Which of the following is not a beneficial effect of bacteria?

Question 13 options:

	gene therapy
	nitrogen fixing in soils
	production of dairy products
	clean-up of wastes

The development of antibiotic resistance can be minimized by which of the following?

Question 14 options:

	avoiding overuse of antibiotics
	switching to another antibiotic as soon as an organism shows signs of developing resistance
	using sufficiently high dosages of antibiotic initially
	all of the above

For Protista, which of the following structures have a defensive function?

Question 15 options:

	contractile vacuole
	trichocysts
	gullet

Answer 1

11) Which of the following statements concerning viruses and human health is false?

The correct answer is

b) most viral infections are difficult to treat but they can be finally destroyed by antibiotics

As antibiotics generally works against bacteria, it doesn't kill viruses

13) Which of the following is not a beneficial effect of bacteria?

The correct answer is none of the above, as all the options shown are beneficial effects of bacteria, so none of the above will be the correct answer but it is not in the options

14) The development of antibiotic resistance can be minimized by which of the following?

The correct answer is

D) all of the above

15) For Protista, which of the following structures have a defensive function?

The correct answer is

B) trichocysts

the function of trichocysts is to repel predators, when it expands out of the protists as a defensive mechanism