How long can rats stay submerged underwater?
A) 30-45 seconds
B) 60-90 seconds
C) 90-120 seconds
D) 120-180 seconds
D
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Plants have been developed that are resistant to
What will be an ideal response?
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Much medical progress can be attributed to the research rabbit
Indicate whether the statement is true or false.
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An oil marked as SAE 50 is _________ than an oil marked SAE 30
A. thinner B. thicker C. weighs 20% less D. weighs 20% more
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In a silo, ________ that forms from fermenting green material can be deadly.
Fill in the blank(s) with the appropriate word(s).
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