Where are the renal pyramids located within the kidney?
A. Renal cortex
B. Renal pelvis
C. Renal medulla
D. Renal papilla
E. Renal sinus
Answer: C
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The order in which HIV breaches barriers and affects immunity is
A. ingestion, entering the circulation, entering helper T cells. B. crossing the mucosal barrier, entering macrophages, then B cells, then natural killer cells. C. crossing the mucosal barrier, entering macrophages, entering helper T cells, then cytotoxic T cells. D. inhalation, entering the circulation, entering helper T cells.
The ________ are the small muscles located in the dermis that cause goose bumps.
Fill in the blank(s) with the appropriate word(s).
Approximately how many alveoli do the lungs contain?
a. 50 million b. 500 million c. 5 billion d. 50 billion e. 500 billion
Development of eggs in females is called ____
a. mitosis b. oogenesis c. spermatogenesis d. cytogenesis