Q: Answer the following question given this paragraph: Q: Both endotherms and ectotherms control what through behavioral responses to changes in the environment? Choices: - sleep cycles - hormones - gas temperature - body temperature A:
A: body temperature

Q: Answer the following question given this paragraph: Mars is the easiest planet to observe. As a result, it has been studied more than any other planet besides Earth. People can stand on Earth and observe the planet through a telescope. We have also sent many space probes to Mars. In April 2011, there were three scientific satellites in orbit around Mars. The rover, Opportunity, was still moving around on the surface. No humans have ever set foot on Mars. NASA and the European Space Agency have plans to send people to Mars. The goal is to do it sometime between 2030 and 2040. The expense and danger of these missions are phenomenal. Q: Which other planet in the solar system is the easiest to observe from earth? Choices: - Pluto - Mercury - Jupiter - mars A:
A: mars

Q: Answer the following question given this paragraph: Q: What are the two main parts of the human nervous system? Choices: - lungs, brain - lungs, spinal cord - brain, heart - brain, spinal cord A:
A: brain, spinal cord

Q: Answer the following question given this paragraph: The skeleton supports the body, protects internal organs, produces blood cells, and maintains mineral homeostasis. Q: What structure supports the body, protects internal organs, produces blood cells, and maintains mineral homeostasis? Choices: - fossil - skin - cuticle - skeleton A:
A: skeleton