*Question*
Q: Through which organ do hookworm larvae enter the human body? Choices: - through the lungs - through the rectum - through the mouth - through the skin A:
**Answer**
through the skin

*Question*
Q: Which blood vessels is oxygen transferred through? Choices: - cilia - arteries - veins - capillaries A:
**Answer**
capillaries

*Question*
Q: Electromagnetic radiation behaves like particles as well as what? Choices: - fluids - currents - points - waves A:
**Answer**
waves

*Question*
Q: Evolution occurs by what process whereby better-adapted members pass along their traits, according to darwin? Choices: - organic selection - natural change - spontaneous variation - natural selection A:
**Answer**
natural selection