Ques:Q: When bacteria enter the bloodstream, the result is what condition? Choices: - hypoxia - hypertension - diarrhea - septicemia A:

Ans:septicemia
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Ques:Q: In vertebrates, what structure runs from the brain to the tail end of the backbone? Choices: - ribcage - aortic valve - backbone - spinal cord A:

Ans:spinal cord
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Ques:Q: What are the cells caused that parasites spread through their host? Choices: - fungi spores - prokaryotes - protists - sporozoites A:

Ans:sporozoites
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Ques:Q: The science of analyzing tree rings is called what? Choices: - algorithms - conservation - estradiol - dendrochronology A:

Ans:
dendrochronology
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