Question: Fact 1: Living things all require energy for survival.  Fact 2: Energy is used for survival and reproduction.  Given the two facts above, living things all require survival and what?
Answer: reproduction

Question: Fact 1: Most ecosystems get energy from sunlight.  Fact 2: Life Living things interact in ecosystems.  Given the two facts above, living things interacting get energy from what?
Answer: sunlight

Question: Fact 1: Insect bites cause harm to living things.  Fact 2: Insect bites are another source of poisoning.  Given the two facts above, poisonous substances can cause what to come to living things?
Answer:
harm