Ques: Q: Particles of matter have the most definite shape in what material state? Choices: - plasma - liquid - gas - solid A:
Ans: solid

Ques: Q: Why do sodium and chloride ions attract each other? Choices: - sulfides attract - magnetism - like attracts like - opposites attract A:
Ans: opposites attract

Ques: Q: What system is the spinal cord related to? Choices: - circulatory system - lymphatic system - digestive system - nervous system A:
Ans: nervous system

Ques: Q: What produces hormones that directly regulate body processes? Choices: - hippocampus - lymph glands - pancreas - hypothalamus A:
Ans:
hypothalamus