AnswersNM-Biology A Summer SchoolUnit Test

Unit Test — Cumulative exam Answers

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Which is usually the best way to present or communicate inferred data?

A
in a bar graph
B
in a data table
C
in a simple diagram
D
in a written paragraph
42
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Nydia gathered data by observing the cross section of the tree trunk that is shown below.Nydia noted all the information below. Which statement gives quantitative data?

Question illustration
A
Some of the growth rings are wider than others.
B
The tree was 20 years old when it was cut down.
C
A forest fire burned the tree during the years that it was alive.
D
The widest growth rings indicate years that had the most rainfall.
43

Which tool would be likely to provide the most accurate measurement of time in a laboratory experiment involving sprinting times of students?

A
a wall clock
B
an egg timer
C
a stopwatch
D
a calendar
44

Which situation would most likely be the concern of a biologist?

A
the need for a hover car
B
crop loss from fungus
C
slow chips for handheld computers
D
new mirrors for a telescope in space
45

Which list best describes what should be worn by students in a biology lab where pouring chemicals into beakers is involved?

A
a long-sleeved shirt, safety glasses, protective gloves, and sandals
B
a long-sleeved shirt, safety glasses, protective gloves, and closed shoes
C
a lab coat, safety glasses, protective gloves, and sandals
D
a lab coat, safety glasses, protective gloves, and closed shoes
46

Tim makes a volcano demonstration for a class. He crafts the volcano out of clay, and then pours vinegar into the baking soda that is inside the volcano. What would be the best way for Tim to turn this demonstration into an experiment?

A
He could pour the same amount of vinegar into several different volcanoes containing baking soda, repeating the demonstration. He would be answering the question “What happens when I pour vinegar into baking soda?”
B
He could time how long the volcano bubbles after he pours the vinegar into the baking soda. He would be answering the question “How long will my volcano bubble?”
C
He could measure how far the bubbles travel across the laboratory table after he pours the vinegar into the baking soda. He would be answering the question “How far will bubbles travel across a flat surface?”
D
He could add different amounts of vinegar to the same amount of baking soda and time how long it bubbles each time. He would be answering the question “How does increasing the amount of vinegar affect the amount of bubbles that form?”
47

Which best describes an idea that has scientific consensus?

A
All scientists must support the idea.
B
Few scientists think the idea is valid.
C
Most scientists disagree with the idea.
D
Most, but not necessarily all, scientists agree with an idea.
48

How does a law differ from a theory?

A
A law is a theory that has been proven to be true and universal.
B
A theory is a group of hypotheses that prove a law is true.
C
A law is a statement of fact, but a theory is an explanation.
D
A theory is a proposed law that has not yet been peer reviewed.
49

Mario at lab table A needs a pair of forceps (tweezers). Max at lab table B tosses Mario a pair. In terms of laboratory safety, which best describes Max’s behavior?

A
It demonstrates a lack of planning.
B
It is unsafe and can result in someone getting hurt.
C
It is safe and appropriate.
D
It shows proper handling of equipment.
50

Which situation would result in a theory being replaced rather than revised?

A
Additional experiments are performed that confirm the existing theory.
B
New information is discovered that contradicts the existing theory.
C
Scientists disagree on how to revise a theory, so they replace it instead.
D
New experiments to confirm the theory yield inconclusive results.

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