Question:
Use evidence from the fact that humans eat crops to answer the following question. "Which of the following crops was the first staple in the human diet?"

Answer:
wheat

Question:
Use evidence from the fact that the sun is the source of energy for life on Earth to answer the following question. "Which of these items is required for a deer to live"

Answer:
sun

Question:
Use evidence from the fact that a bird is warm-blooded to answer the following question. "Which relationship is true?"

Answer:
birds have hot blood; snakes have cold blood