The opening of which of the following is covered
with ciliated, fingerlike projections that produce a
sweeping action?
a. ovary
b. uterus
c. vagina
d. oviduct
e. follicle
Answer: d
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The contraceptive device that is a soft latex cup with a flexible rim that fits over a woman's cervix is a(n) _________.
Fill in the blank(s) with the appropriate word(s)
Identify a true statement about alpha-adrenergic blocking drugs.
What will be an ideal response?
The antimicrobial polymyxin
A. inhibits protein synthesis. B. inhibits nucleic acid synthesis. C. blocks a metabolic pathway. D. disrupts cytoplasmic membranes. E. inhibits cell wall synthesis.
The secretory systems of Type III and Type IV pathogenic bacteria differ in their mode of attacking cells in what way?
A. Type III systems use modified pili as transfer tubes whereas Type IV systems use flagella modified as "syringes" to inject materials into cells they are infecting. B. Type III systems bind to the cellular membrane by slimy mucilage and toxins diffuse across the membrane, whereas Type IV systems infect cells using pili as transfer tubes. C. Type III systems infect cells using pili as transfer tubes whereas Type IV systems bind to the cellular membrane by slimy mucilage and toxins diffuse across the membrane. D. Both systems attach to cells in the same way but they differ merely in the chemicals that they inject into the host cell. E. Type III systems use flagella modified as "syringes" to inject materials into cells they are infecting whereas Type IV systems use modified pili as transfer tubes.