Q: Restriction enzymes or restriction endonucleases are prokaryotic enzymes that recognize and cut what at specific sequences? Choices: - mitochondria - bacteria - rna - dna A:
dna

(Question)
Q: Most molecular compounds that have a mass similar to water are in what state of matter at room temperature? Choices: - solid - liquid - vapor - gas A:
(Answer)
gas

Ques: Q: When a plant has what deficiency, guard cells may lose turgor and close stomata? Choices: - cold - light - air - water A:
Ans: water

(Q).
Q: The changing of a light ray's direction (loosely called bending) when it passes through variations in matter is called this? Choices: - wavelength - resonance - vibration - refraction A:
(A).
refraction

Ques:Q: Synthesis, decomposition, replacement, and combustion are all types of what reaction? Choices: - natural - toxic - mineral - chemical A:

Ans:chemical

Q: What compounds contain only carbon and hydrogen? Choices: - carbonates - particles - molecules - hydrocarbons A:
hydrocarbons