Which structure in the human body will use flagella to move?
A. lining of the urinary system
B. lining of the respiratory tract
C. eggs
D. sperm
E. lining of the uterine tubes
Answer: D
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The insect symbiont Wolbachia can be used to suppress disease transmission by mosquitoes because
A) Wolbachia supplies essential nutrients to the mosquito Culex quinquefasciatus. B) only Wolbachia-infected mosquitoes can transmit viral diseases such as dengue fever. C) Wolbachia infections can spread rapidly through a mosquito population, killing all the mosquitoes. D) Wolbachia-infected male mosquitoes sterilize uninfected female mosquitoes.
Plasma cells
A. secrete antibodies. B. function in allergic reactions. C. suppress immune reactions. D. activate B cells and other T cells. E. directly destroy target cells.
Proteins constitute what percentage of the human
plasma? a. 1–2 b. 7–8 c. 12–15 d. 50–60 e. 91–92
A deficiency of which nutrient will interfere with the proper development of the neural tube?
a. vitamin A b. vitamin D c. vitamin C d. vitamin B12 e. folic acid