Q: In chemical reactions, what substances can act like metals or nonmetals, depending on their number of electrons? Choices: - diacritics - minerals - synthetics - metalloids A:
metalloids

Q: Ethers readily dissolve what type of molecules? Choices: - proteins - lipids - polar - non-polar A:
non-polar

Q: Q: What is the term for the measure of the average kinetic energy of the particles in matter? Choices: - voltage - precipitation - friction - temperature A:
A: temperature

Question: Q: What consists of thylakoid membranes surrounded by stroma? Choices: - a photon - a nucleus - a stem - a chloroplast A:
Answer: a chloroplast

*Question*
Q: What are often formed biologically during the breakdown of proteins in animal cells, having the smell of death and decay?. Choices: - ketones - acids - enzymes - amines A:
**Answer**
amines

(Q).
Q: Four haploid spermatids form during meiosis from what? Choices: - the zygote - the sister chromatic - the ova - the primary spermatocyte A:
(A).
the primary spermatocyte