Ques: Q: How many different kinds of ions are produced when sodium chloride dissociates ? Choices: - five - one - three - two A:
Ans: two

Ques: Q: What system includes the brain and the spinal cord? Choices: - digestive - lymbic - muscular - central nervous A:
Ans: central nervous

Ques: Q: What kind of reproduction is vegetative reproduction? Choices: - sexual - meiosis - mitosis - asexual A:
Ans: asexual

Ques: Q: What term is used for any combination of two or more atoms? Choices: - element - synthesis - nucleus - molecule A:
Ans:
molecule