Which of the following is part of the body's second line of defense?

A. Vomiting
B. Saliva
C. Phagocytosis
D. Cytotoxic T-cells


C. Phagocytosis

Biology & Microbiology

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DNA is found in all the following except:

A. mitochondria of animals. B. mitochondria of plants. C. chloroplasts of plants. E. many eukaryotic viruses. F. ribosomes of eukaryotes.

Biology & Microbiology

Daptomycin requires free calcium for its antibacterial action, is inhibited by pulmonary surfactant, and has activity against gram-positive bacteria. Gram-positive bacterial isolates can be tested for daptomycin susceptibility. For which type of infection should daptomycin susceptibility NOT be reported?

a. Bacteremia b. Meningitis c. Pneumonia d. Skin/Soft tissue infection

Biology & Microbiology

The echinoderms are most closely related to the ________.

A. mollusks B. arthropods C. flatworms D. chordates

Biology & Microbiology

Describe the maternal age effect associated with Down syndrome

What will be an ideal response?

Biology & Microbiology