(Question)
Q: In humans and other multicellular organisms, different types of what basic structures are specialized for specific jobs? Choices: - proteins - lipids - organs - cells A:
(Answer)
cells

(Question)
Q: The types of white blood cells that arrive at an inflamed site depend on the nature of what? Choices: - genes - skin color - blood type - injury or infection A:
(Answer)
injury or infection

(Question)
Q: How many pairs of legs do arachnids have? Choices: - 8 - 6 - ten - 4 A:
(Answer)
4