Q: What system consists of all the muscles of the body? Choices: - vascular - digestive - endocrine - muscular A:
muscular

Q: How can nuclear fusion in stars be simulated? Choices: - plutonium accelerators - nitrogen accelerators - nuclear reactors - particle accelerators A:
particle accelerators

Q: Q: Down syndrome is caused by having three copies of what, a condition known as trisomy? Choices: - genome - variation - DNA - chromosome A:
A: chromosome

Question: Q: What are substances that provide hydrogen ions (h+) and lower ph? Choices: - proteins - nutrients - bases - acids A:
Answer: acids

*Question*
Q: What causes blue litmus to turn red? Choices: - oxygen - base - carbon - acid A:
**Answer**
acid

Q: Q: The measure of magnetic fields is named after a serbian physicist. what is his name? Choices: - Carl Sagan - Albert Einstein - Niels Bohr - nikola tesla A:
A: nikola tesla