1) Which of the following can cause bacteria to develop antibiotic resistance? a

Question

1) Which of the following can cause bacteria to develop antibiotic resistance?

a) doctors prescribing antibiotics for viral infections

b) patients not finishing their antibiotic regimen

c) conjugative transfer of antibiotic resistance genes between bacteria

d) doctors prescribing the same antibiotic repeatedly to the same patient for the same infection

e) all of the above

2) What is so significant about the evolution of photosynthesis on Earth?

a) It caused aerobic bacteria to go extinct and be replaced with anaerobic bacteria

b) It allowed organisms to change their habitat from land to the sea.

c) It created a new atmosphere where carbon dioxide was readily available.

d) It allowed aerobic, multicellular organism to evolve.

3) Which of the following groups contains the smallest living organisms

a) Bacteria

b)Viruses

c) Prions

d) Protists

e) fungi

a) Bacteria

b)Viruses

c) Prions

d) Protists

e) fungi

Explanation / Answer

1)

The characters that can cause bacteria to develop antibiotic resistance are doctors prescribing antibiotics for viral infections, patients not finishing their antibiotic regimen, conjugative transfer of antibiotic resistance genes between bacteria and doctors prescribing the same antibiotic repeatedly to the same patient for the same infection.

For example, if E.coli is treated with an antibiotic, then after several generations of their growth showed resistance. This bacterium has achieved the resistance trait through the modification of genes on their genome or acquiring new genes from other resistant species. Hence, they encode the enzymes, which can degrade the antibiotic.           

Thus, the correct option is (E) all of the above.    

2)

The significant character about the evolution of photosynthesis on Earth is It allowed aerobic, multicellular organism to evolve. Thus, the correct option is (d).

3)

The following groups contain the smallest living organisms is Bacteria. Thus, the correct option is (a)

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