Phagocytes kill a pathogen once it has been ingested, whereas eosinophils and (MAC/NK/NOD) lymphocytes can accomplish extracellular killing by secreting toxins. (Be sure to use capital letters in your answer.)
What will be an ideal response?
NK
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Which muscle group is composed of mainly slow-twitch (type I) fibers?
A. Deltoid muscle of the shoulder B. Rectus muscles that move the eye C. Erector spinae muscles of the back D. Small muscles of the hand
If an organism has four pairs of chromosomes, after meiosis, the daughter cells will contain how many chromosomes?
A. 8 B. 2 C. 4 D. 16 E. 32
Which of the following have little value as antiseptics, but are used to mechanically remove microbes?
A. biguanides B. quats C. chlorines D. soaps
The first living cells were most likely ...
A. anaerobic, heterotrophic, prokaryotic. B. anaerobic, chemotrophic, eukaryotic. C. aerobic, photosynthetic, prokaryotic. D. anaerobic, heterotrophic, eukaryotic. E. aerobic, photosynthetic, eukaryotic.