Place the following cells in order from greatest to least phagocytic activity: neutrophils, eosinophils, macrophages.
A. Macrophages, neutrophils, eosinophils
B. Neutrophils, macrophages, eosinophils
C. Macrophages, eosinophils, neutrophils
D. Eosinophils, macrophages, neutrophils
E. Neutrophils, eosinophils, macrophages
Answer: A
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Which of the following types of inhibitor permanently alters the enzyme it inhibits? Select all correct choices
A. an irreversible inhibitor B. a competitive inhibitor C. a non-competitive inhibitor D. both an irreversible inhibitor and a competitive inhibitor
How would you expect a disease of cartilage formation to affect bone development?
A. Cartilage is used for other tissues, not bone, so it will not affect bone development. B. The epiphysis is formed of cartilage so that will be disrupted, but otherwise the bone will be normal. C. It would greatly disrupt bone development, since bones are originally formed of cartilage that becomes replaced. D. Cartilage defects will affect bone only via the effect on tendons and ligaments.
Which of the following is false regarding smallbodied
invertebrates of aquatic or continually moist environments? a. They have the simplest forms of respiration. b. Gases diffuse across the body surface coverings. c. They do not have specialized oxygentransporting cells. d. They depend on integumentary exchange for respiration. e. None of these are false.
An example of a noncommunicable disease is
A) measles B) chickenpox C) tetanus D) influenza