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Which of the following cells stand guard against toxins, microbes, and other pathogens?

Embarrassment can be perceived by an abnormal coloration of the skin called cyanosis.

The thin layer of slightly denser spongy bone that separates anadult’sepiphysis from the diaphysis is called the __________.

Most kidney tubules are made of __________ epithelialtissue, which isspecialized for absorption and secretion.

Blood vessels in the __________ provide a hair with its sole source of nutrition.

Hypercalcemia causes depression of the nervous system.

Arteriosclerosis is one example of ectopic ossification, which means __________.

The least common, but most deadly, type of skin cancer is __________.

The result of blood calcium and phosphate levels being too low for normal deposition is a softness of the bones called __________ in children and __________ in adults.

__________ is associated with rapid transport of substances through a membrane, whereas __________ is associated with resistance to abrasion.