During the treatment of a bacterial infection with antibiotic, the yeast Candida can grow out of control and cause a vaginal or intestinal infection. What is the best explanation for fungal infection?
A. There are fewer bacteria present to compete with the yeast.
B. Antibiotics are often contaminated with Candida yeast.
C. The antibiotic weakens the immune system.
D. Bacteria normally digest yeast cells.
E. The antibiotic causes mutations in the yeast that give the yeast resistance.
A. There are fewer bacteria present to compete with the yeast.
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A cell is minimally defined by which of the following:
a. an organized chemical system. b. specialized molecules. c. a nucleus. d. a membrane. e. an organized chemical system and specialized molecules surrounded by a membrane.
Which of the following statements about blisters is correct?
A. Blisters originate in the subcutaneous layer. B. Blisters are confined to the epidermis. C. Blisters originate in the dermis. D. Blisters result from a separation of epidermis from dermis.
Red blood cells transport both oxygen and carbon dioxide molecules.
a. true b. false
According to current thinking, the minimum requirement for life to have originated on Earth was the formation of a _______________
(a) molecule that could provide a template for the production of a complementary molecule. (b) double-stranded DNA helix. (c) molecule that could direct protein synthesis. (d) molecule that could catalyze its own replication.