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Biology Laboratory Manual, 6/e

Darrell S. Vodopich, Baylor University
Randy Moore, University of Minnesota--Minneapolis

Exercise 1-Measurements in Biology

Choose the one answer that best answers the question.


1	Which of the following is the metric unit for volume?
		A)	meter
		B)	liter
		C)	gram
		D)	gallon


2	If you wanted to express 6.2 meters in centimeters, what would you do?
		A)	multiply 6.2 by 10
		B)	multiply 6.2 by 100
		C)	divide 6.2 by 100
		D)	multiply 6.2 by 0.01


3	If a table is 1.2m wide and 2m long, then what is the area of the table?
		A)	2.4m²
		B)	2.4m
		C)	2.4m³
		D)	D. 0.6m²


4	When measuring water in a graduated cylinder, where do you read the volume to get an accurate reading?
		A)	at the top of the meniscus
		B)	at the bottom of the meniscus
		C)	in the middle of the meniscus
		D)	a graduated cylinder is not used to measure volume


5	If the length of a brick is 25cm, its width is 10cm, and its depth is 6cm, then what is the brick’s volume?
		A)	1500m³
		B)	1500cm³
		C)	15,000mL
		D)	none of the above


6	Which of the following is the best definition of statistics?
		A)	the arithmetic average of a group of measurements
		B)	the difference between extreme measurements
		C)	a tool used to understand questions on the basis of limited amount of specific data
		D)	a tool used to gain a qualitative description of our observations


7	If a scientist is performing research on Americans with high cholesterol, to gain the most accurate and practically obtainable information, what must the scientist do?
		A)	eat a pile of cheeseburgers and study himself
		B)	study everyone he knows with high cholesterol
		C)	study every person in America with high cholesterol
		D)	study a large group of people who have high cholesterol but represent a cross-section of the American population


8	What is the mean for the following set of numbers? 2 2 2 3 3 5 6 7 38
		A)	7.6
		B)	6
		C)	38
		D)	2


9	What is the median for the following set of numbers? 2 2 2 3 3 5 6 7 38
		A)	7.6
		B)	6
		C)	3
		D)	38


10	What is the range of the following set of numbers? 2 2 2 3 3 5 6 7 38
		A)	7.6
		B)	3
		C)	38
		D)	36

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