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Chapter 1, Section 3
Test Description: The World of Life Science Tools of Life Scientists
Instructions: Answer all questions to get your test result.
1) The International System of Units ___.
A
is based on standardized body measurements
B
is useful only for measuring lengths
C
is a device used to measure volume
D
contains units that are bsed on the number 10
2) Which tool would a life scientist use to obtain a detailed image of the nerves that branch off a person's spinal cord?
A
a transmission electron microscope
B
a scanning electron microscope
C
MRI
D
an X ray
3) An advantage of using the International System of Units is that it ___.
A
includes easily understood units of measure, such as inches
B
gives scientists a common way to share their results
C
use different units to measure mass and weight
D
is based on measurements of common body parts
4) A ___ object contains the same amount of matter as a 10 kg object.
A
1,000 g
B
100 g
C
100,000 g
D
10,000 g
5) The three main parts of a compound light microscope are ___.
A
an ocular lens, an objective lens, and a hand lens
B
a stage, a light, and a tube with lenses
C
a lens, a slide, and a light
D
an ocular light, an objective light, and a radiant light
6) Transmission electron microscopes can magnify specimens up to ___ times their actual size.
A
100
B
100,000
C
1,000
D
200,000
7) A CT scan is a ___.
A
computed tomography scan
B
clearly transferred scan
C
computer-generated topography scan
D
concentrated transmission scan
8) ___ is defined as the amount of space something occupies.
A
Mass
B
Area
C
Volume
D
Temperature
9) A life scientist would use an (a) ___ to magnify a living speciman
A
electron microscope
B
X ray
C
CT scan
D
compound light microscope
10) ___ is the use of knowledge, tools, and materials to solve problems and accomplish task.
A
Variable
B
Life science
C
Technology
D
Hypothesis
*select an answer for all questions
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