Ques: Q: Visible light is the narrow segment of what, to which the normal human eye responds? Choices: - molecular spectrum - radio spectrum - phenomena spectrum - electromagnetic spectrum A:
Ans: electromagnetic spectrum

Ques: Q: "endocrine" and "exocrine" are two types of what? Choices: - organs - fluids - cells - glands A:
Ans: glands

Ques: Q: What is categorized by the forces holding the individual atoms, ions, or molecules together? Choices: - gases - liquids - oils - solids A:
Ans: solids

Ques: Q: In the scientific method, what is the initial, unproven explanation for why something is occurring? Choices: - concepts - idea - theories - hypothesis A:
Ans:
hypothesis