Q: What kind of diseases involve the immune system accidentally attacking healthy body cells? Choices: - contagious diseases - metabolic - inflammation - autoimmune A:
autoimmune

Q: Where can you find sodium acetate? Choices: - table salt - baking soda - a cold pack - a heat pack A:
a heat pack

Q: Q: Water droplets form when the air reaches 100-percent what? Choices: - density - chance of rain - heat - humidity A:
A: humidity

Question: Q: Synovial and ball-and-socket are both types of what? Choices: - bonds - cells - muscles - joints A:
Answer: joints

*Question*
Q: How do invertebrates reproduce? Choices: - randomly - constantly - asexually - sexually A:
**Answer**
sexually

(Question)
Q: What do scientists collect to test a hypothesis? Choices: - arguements - beilefs - books - evidence A:
(Answer)
evidence