Lymph originates in blood capillaries that pick up tissue fluid.
Answer the following statement true (T) or false (F)
False
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While most of the cells in a hair are dead, the living epithelial cells are found in
A. the cuticle of the hair shaft. B. the cortex of the hair shaft. C. the hair bulb. D. the hyponychium.
The functional and structural unit of the kidneys is the ________.
A) nephron B) loop of Henle C) glomerular capsule D) basement membrane of the capillaries
The chemoreceptors in the carotid and aorta are sensitive to:
a. an increase in blood carbon dioxide b. a decrease in blood oxygen c. an increase in blood acidity d. all of the above
Distinguish between innate immunity and adaptive immunity
A) Innate immunity primarily uses T cells to neutralize the threat. Adaptive immunity primarily uses B cells to neutralize the threat. B) Innate immunity primarily uses B cells to neutralize the threat. Adaptive immunity primarily uses T cells to neutralize the threat. C) Innate immunity relies on the activity of cells to neutralize the threat. Adaptive immunity primarily relies on the activity of specific proteins, such as antibodies to neutralize the threat. D) Innate immunity is nonspecific and does not distinguish one type of threat from another. Adaptive immunity is specific and protects against particular threats. E) Innate immunity is specific and protects against particular threats. Adaptive immunity is nonspecific and does not distinguish one type of threat from another.