Which of the following statements accurately describes the difference in spectrum of activity between erythromycin and azithromycin?
A. Azithromycin has better activity against respiratory pathogens such as Haemophilus influenzae and Moraxella catarrhalis but less potent activity against staphylococci and streptococci.
B. Erythromycin has the same activity as azithromycin against gram-positives and gram-negatives
C. Azithromycin has better activity against staphylococci and streptococci compared to erythromycin
D. Erythromycin has better activity against gram-negatives such as H. influenza.
Select your answer:
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Structures and Functions of Living Organisms and Genetics › ViewWhich best explains how the nervous system controls the skeletal system?
A. The brain protects the skull.
B. The brain stores calcium for bones.
C. The brain produces red blood cells for bones.
D. The brain sends messages to the muscles to move bones.
Bone, Spine, and Joint Pathology › View
tumor consisting of bone and cartilage tissue; usually benign
A. chondrosarcoma
B. osteosarcoma
C. fibrosarcoma
D. osteochondroma