Ques:Q: A biofilm is a colony of what that is stuck to a surface such as a rock or a host's tissues? Choices: - insects - eukaryotes - vacuoles - prokaryotes A:

Ans:prokaryotes
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Ques:Q: What happens to a species when all of the individuals die out or evolve into a different species? Choices: - accumulation - selection - depletion - extinction A:

Ans:extinction
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Ques:Q: People with red hair usually have what type of skin? Choices: - dark - oily - dry - light A:

Ans:light
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Ques:Q: What is a sac-like organ at the end of the esophagus? Choices: - appendix - larynx - spleen - the stomach A:

Ans:
the stomach
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