Q: Which organ protects the body from injury, water loss, and microorganisms? Choices: - kidney - stomach - liver - skin A:
skin

Q: In vertebrates, a system of what structures attached to the endoskeleton enables movement? Choices: - nerves - tendons - tissues - muscles A:
muscles

Q: The intentional release or spread of agents of disease is known as what? Choices: - act of war - pandemic - disaster - bioterrorism A:
bioterrorism

Q: What is the second largest planet in the solar system? Choices: - Venus - jupiter - Mars - saturn A:
saturn