Q: The scientific method is a method of research with defined steps that include experiments and careful what? Choices: - discovery - estimation - consideration - observation A:
observation

(Question)
Q: What part of the cell in plants and algae does photosynthesis take place? Choices: - mitochondria - fibers - cell wall - organelles A:
(Answer)
organelles

Ques: Q: The actual amount (mass) of gasoline left in the tank when the gauge hits "empty" is a lot less in the summer than in the winter. the gasoline has the same volume as it does in the winter when the "add fuel" light goes on, but because the gasoline has expanded, there is what? Choices: - lower gravity - same mass - more mass - less mass A:
Ans: less mass

(Q).
Q: No-till farming is one effort to combat what, caused by typical farming practices? Choices: - habitat destruction - drought - pollution - soil erosion A:
(A).
soil erosion

Ques:Q: Aldehydes, ketones, carboxylic acids, esters, and ethers all have functional groups containing what element? Choices: - silicon - methane - carbon - oxygen A:

Ans:oxygen

Q: In animal cells, what arises from the centrosomes and includes spindle microtubules and asters? Choices: - Golgi apparatus - ribosomes - DNA helix - the spindle A:
the spindle