Ques:Q: What are the three types of symbiosis? Choices: - connectionism , parasitism , commensalism - commensalism, osmosis, internalization - internalization , parasitism , commensalism - mutualism, parasitism, commensalism A:

Ans:mutualism, parasitism, commensalism
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Ques:Q: In physics, resistance is opposition to the flow of what? Choices: - temperature charges - capacitance - surface flow - electrical charges A:

Ans:electrical charges
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Ques:Q: What orbits an atoms' nucleus? Choices: - neutrally charged ions - positively charged protons - isotopes - negatively charged electrons A:

Ans:negatively charged electrons
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Ques:Q: What two things are used in optical instruments to reflect or refract light? Choices: - orientations and lenses - mirrors and magnifiers - prisms and microscopes - mirrors and lenses A:

Ans:
mirrors and lenses
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