Q: What is the basic unit of structure and function of living things? Choices: - atom - molecule - particle - cell A:
cell

Q: Which organ is the control center of the nervous system? Choices: - the heart - the spine - the lungs - the brain A:
the brain

Q: Q: What kind of motion characterizes waves? Choices: - round - breathing - bending - repetitive A:
A: repetitive

Question: Q: What does interstellar medium consist of? Choices: - gravitational waves - the strong force - dark matter - thinly spread gas and dust A:
Answer: thinly spread gas and dust

*Question*
Q: Name the virus that causes cold sores. Choices: - Epstein-Barr - eboli - AIDS - herpes virus A:
**Answer**
herpes virus

Q: Q: What connects the two hemispheres of the brain? Choices: - The brain stem - holy callosum - disruption callosum - corpus callosum A:
A: corpus callosum