Ques:Q: Chemistry is the study of matter and energy and how they what? Choices: - distinct - division - interaction - interact A:

Ans:interact
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Ques:Q: What is the smallest unit of time commonly based on? Choices: - hour - millimeter - minute - second A:

Ans:second
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Ques:Q: What are the specialized cells of sponges called? Choices: - plant cells - helper cells - t cells - collar cells A:

Ans:collar cells
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Ques:Q: Contributing to the blood-brain barrier is one of the jobs of glial cells, which support neurons in what system? Choices: - peripheral nervous system - circulatory system - digestive system - central nervous system A:

Ans:
central nervous system
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