Ques: Q: What group of simple organisms recycles nutrients and has been on earth since long before multicellular life appeared? Choices: - bacteria - protists - eukaryotes - prokaryotes A:
Ans: prokaryotes

Ques: Q: The strength of acids is measured on what scale? Choices: - Killalot - qcd - g - ph A:
Ans: ph

Ques: Q: The medieval catapult has a heavy ballast on one end and what on the other end? Choices: - fragment - pivot - propellant - projectile A:
Ans: projectile

Ques: Q: Why do sodium and chloride ions attract each other? Choices: - sulfides attract - magnetism - like attracts like - opposites attract A:
Ans:
opposites attract