*Question*
Q: A venule is an extremely small vein, generally 8100 micrometers in diameter. postcapillary venules join multiple capillaries exiting from a capillary bed. multiple venules join to form what? Choices: - clots - arteries - glands - veins A:
**Answer**
veins

*Question*
Q: The rock of the mantle is mostly what? Choices: - metamorphic - crystalline - silicon - peridotite A:
**Answer**
peridotite

*Question*
Q: Hypersensitivity may refer to a maladaptive response of what system toward a harmless foreign substance? Choices: - oxygen - brain - System - immune A:
**Answer**
immune

*Question*
Q: Electrophiles have a strong tendency to react with what? Choices: - acids - neutrons - resistors - nucleophiles A:
**Answer**
nucleophiles