Question: Q: Capillaries in the chorionic villi filter fetal wastes out of the blood and return clean, oxygenated blood to the fetus through what? Choices: - separates vein - Back Vein - skin vein - umbilical vein A:
Answer: umbilical vein

Question: Q: Most members of the animal kingdom have differentiated tissues of four main classesnervous, muscular, connective, and this? Choices: - neural - crystalline - digestive - epithelial A:
Answer: epithelial

Question: Q: What is is a measurement of the force amplification of a machine? Choices: - mechanical push - mechanical pull - force multiplier - mechanical advantage A:
Answer:
mechanical advantage