Two insects that devour huge numbers of insects are

What will be an ideal response?


lady beetles and praying mantises

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When a(n) ____________________ symbol is used, an abbreviation for the method of finish may be included.

Fill in the blank(s) with the appropriate word(s).

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Four candidates are to be interviewed for a job. Two of them, numbered 1 and 2, are qualified, and the other two, numbered 3 and 4, are not. The candidates are interviewed at random, and the first qualified candidate interviewed will be hired. The outcomes are the sequences of candidates that are interviewed. So one outcome is 2, and another is 431.

a. List all the possible outcomes. b. Let A be the event that only one candidate is interviewed. List the outcomes in A. c. Let B be the event that three candidates are interviewed. List the outcomes in B. d. Let C be the event that candidate 3 is interviewed. List the outcomes in C. e. Let D be the event that candidate 2 is not interviewed. List the outcomes in D. f. Let E be the event that candidate 4 is interviewed. Are A and E mutually exclusive? How about B and E, C and E, D and E?

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There are ____ basic methods for mixing oxygen and fuel gas to form a hot, uniform flame.

A. two B. three C. four D. five

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Where are the electric motors in the two-mode hybrid vehicle?

A) Belt driven in the front of the engine B) At the rear of the engine C) At the rear (output shaft) of the transmission D) Inside the transmission housing

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