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In the United States and Canada,bats Use One of Two

question 76

Multiple Choice

In the United States and Canada,bats use one of two strategies to survive winter: They either migrate south,or they hibernate.Recently,those that hibernate seem to have come under attack by a fungus,Geomyces destructans (Gd) ,an attack that is occurring from Missouri to southern Canada.Many infected bats have a delicate,white filamentous mat on their muzzles,which is referred to as white-nose syndrome (WNS) .The fungus invades the bat tissues,causes discomfort,and awakens the bat from its hibernation.The bat fidgets and wastes calories,using up its stored fat.The bat then behaves abnormally,leaving its cave during daytime in winter to search for food.Their food,primarily insects,is scarce during the winter,and the bats ultimately starve to death.Since 2007,it is estimated that up to one million bats have perished from WNS.
The Gd mat on the fur of the bats should be expected to consist of ________.

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Variable Costs

Costs that vary directly with the level of production or output, such as raw materials and labor expenses.

Exponentiation

A mathematical operation involving two numbers, the base and the exponent, indicating how many times the base is multiplied by itself.

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The original sum of money borrowed in a loan or put into an investment.

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A continuous, measurable quantity in which events occur in a sequence from the past through the present to the future.