Parasites:

a. often kill the host c. live in close proximity to an animal
b. increase production efficiency of livestock d. all answers


C

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A major difference between common HVAC systems and air turnover systems is that air turnover systems _____.

a. cannot provide cooling b. are direct-fired units c. are designed to encourage stratification d. often use propeller fans to circulate the air

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In a closed-loop system, the plastic water pipes that are buried in the Earth are called ____.

A. ground loops B. thermal loops C. water loops D. both a and c

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A 99% confidence interval for a population mean based on a sample of size 64 is computed to be (16.3, 18.7). How large a sample is needed so that a 99% confidence interval will specify the mean to within ±1.0?

What will be an ideal response?

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Deburring tools are used for:

A) Preparing a compressor head before applying a head gasket. B) Removing the small burr left by pipe cutters. C) Removing splinters from wood frame members. D) Removing rough edges from electrical wiring.

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