Q: Teeth in the back of the mouth are used for what? Choices: - swallowing food - tearing food - cutting food - grinding food A:
grinding food

Q: What conveys signals received by the eye to the brain? Choices: - motor nerve - sciatic nerve - sensory nerve - optic nerve A:
optic nerve

Q: What are the tiny, tube-shaped structures found inside a kidney called? Choices: - neurons - jejunum - dendrites - nephrons A:
nephrons

Q: What type of protein speeds up chemical reactions in cells? Choices: - hemoglobin - lipids - collagen - enzyme A:
enzyme