Q: Alkynes are what type of compound? Choices: - reversible hydrocarbons - proteins hydrocarbons - Split Hydrocarbons - unsaturated hydrocarbons A:
unsaturated hydrocarbons

(Question)
Q: What are two ways cnidarians are able to reproduce? Choices: - mitosis and meiosis - spawning and sexual - internally and externally - asexually and sexually A:
(Answer)
asexually and sexually

Ques: Q: Which two gases make up the bulk of earth's atmosphere? Choices: - carbon and oxygen - phosphorus and oxygen - nitrogen and argon - nitrogen and oxygen A:
Ans: nitrogen and oxygen

(Q).
Q: One crystalline form of calcium carbonate is the mineral sold as what? Choices: - quartz - basalt - salt - calcite A:
(A).
calcite

Ques:Q: What are the organic compounds that the body needs in small amounts to function properly; humans need 13 different ones? Choices: - minerals - proteins - nutrients - vitamins A:

Ans:vitamins

Ques: Q: Boron only occurs naturally in compounds with what element? Choices: - helium - nitrogen - carbon - oxygen A:
Ans:
oxygen