Ques:Q: What is the term for the affected factor in an experiment? Choices: - multiple variable - stable variable - independent variable - dependent variable A:

Ans:dependent variable
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Ques:Q: What is the average number of individuals per unit of area or volume called? Choices: - crowdedness - population structure - population count - population density A:

Ans:population density
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Ques:Q: What molecules are usually insoluble in water? Choices: - polar - acids - ions - non-polar A:

Ans:non-polar
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Ques:Q: Organisms incapable of photosynthesis that must therefore obtain energy and carbon from food by consuming other organisms are called what? Choices: - photoautotrophs - autotrophs - chemoautotrophs - heterotrophs A:

Ans:
heterotrophs
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