AnswersBiology - Semester 1 PathwaysLaboratory Safety

Collecting and Organizing Data Answers

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This graph shows how tall five types of trees were after they grew for 10 years. Which statement correctly describes the data shown in the graph and the type of observation used?

Question illustration
A
The gingko tree grew 14 feet; this is a qualitative observation.
B
The bur oak tree’s growth rate averaged 2.5 feet per year; this is a quantitative observation.
C
The bur oak tree is twice the height of the ash tree; this is a qualitative observation.
D
The Norway spruce grew more slowly than the sycamore every year; this is quantitative data.
2
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Which action is the best example of a direct observation?

A
identifying which bird was present by the tracks that it leaves in the sand at a beach
B
reading numbers on a heat sensor to conclude that there is a deer in the night woods
C
listening to a cricket chirp at night and counting the number of chirps per minute
D
determining the seal population of an island by counting seals in 10 square meters of the island
3

Some tools have various levels of graduations. For example, a ruler may have graduations for both millimeters and centimeters. When measuring the length of an earthworm, which graduations would allow for the most accurate measurement?

A
millimeters
B
centimeters
C
decimeters
D
meters
4

Which is the best reason for using a temperature probe instead of a simple laboratory thermometer?

A
to make measurements in degrees Celsius
B
to make measurements in degrees Fahrenheit
C
to record continuous measurements over several minutes
D
to record individual measurements several times in a day
5

Jim’s heart rate was monitored during periods of exercise and periods of rest. The graph shows the result of one 50-minute test.Which statement is an inference that can be made by using the graph?

Question illustration
A
Jim’s heart rate was 60 beats per minute at the start of the test.
B
Jim’s maximum heart rate during the test was 140 beats per minute.
C
Jim’s heart rate increased steadily as he continued exercising.
D
Jim’s heart rate decreased quickly after 30 minutes since he is in good shape.
6

LeeAnn wants to organize her data from researching the effect of hours of sunlight on plant growth to see if there is a trend in the data. Which would be the best way for LeeAnn to display her data for analysis so she can make predictions about the amount of light needed for maximum growth?

A
in a line graph
B
in a data table
C
in a bar graph
D
in a pie graph
7

Tonya plans to use the lab instrument that is shown below in an experiment.Which property of matter does the instrument measure?

Question illustration
A
mass
B
volume
C
density
D
temperature
8

Dan gave five sunflower seedlings each a different type of fertilizer. He measured the initial and final heights of each plant after a month, then calculated the total growth of each one in centimeters. Which is the best method for visually representing the data for comparison?

A
bar graph
B
pie graph
C
data table
D
Venn diagram
9

Carlos is heading a student council project to improve cafeteria meals. He surveyed all students who eat cafeteria lunches to find out which of the five weekly cafeteria options they like least. What steps should Carlos take to best display this data?

A
He should total the votes for each of the options and plot these five values in a pie chart.
B
He should total the votes for each of the options and plot these five values in a line graph.
C
He should average the votes for each of the options and list the averages in a data table.
D
He should analyze the votes for each option and summarize the findings in a paragraph.
10

Which type of data is qualitative data?

A
heights in meters
B
volumes in milliliters
C
calculations of density
D
descriptions of behavior

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