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24 Cards in this Set
- Front
- Back
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Scientists often use experiments to test their __________, which are possible explanations for observations
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hypothesis
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_________ is defined as the amount of space something occupies.
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Volume
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A life scientist would use a(n) _____________ to magnify a living specimen.
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compound light microscope
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a set of related hypotheses that are supported by evidence may become accepted as a __________.
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theory
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_____________ is the use of knowledge, tools, and materials to solve problems and accomplish tasks.
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Technology
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You might find a __________ at work studying how wasps could be used to control fire ant populations.
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Life Scientist
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When researchers use the ____________, they should repeat or switch the order of steps as needed.
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scientific method
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A scientist who wants to study the possible side effects of a new medicine would probably include a __________ that received no medicine.
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control group
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a scientist would use an __________ to obtain a detailed image of the nerves that branch off a person's spinal cord.
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a MRI
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an advantage of using the ___________ is that is gives scientist a common way to share their results.
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International System of Units
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in a scientific experiment, a hypothesis that cannot be tested is always cannot be tested is always considered to be __________.
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not useful
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a __________ object contains the same amount of matter as a 10 kg object.
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10,000 g
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In the cell membrane, __________ molecules form two layers.
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phospholid
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When a planarian worm is cut in half, each half develops into a whole worm. This is an example of ________.
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asexual
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____________ are sometimes called the blueprints of life.
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Nucleic Acids
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__________ is the passing of traits from one generation to the next.
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Heredity
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__________ refers to all of the chemical activities that an organism's cells perform.
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Metabolism
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_________ is a complex carbohydrate manufactured by plants.
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Starch
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When a duck dives under water, its inner eyelids automatically raise to cover the duck's eyes. In this case, water acts as __________.
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a stimulus
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The molecule that provides energy for cellular processes is _________.
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ATP
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The subunits of proteins are __________.
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Amino Acids
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Cells do not use _________ for energy storage.
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nucleic acids
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________ are primary source of energy for cells.
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proteins
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All cells have a nucleus and a cell membrane are not part of the _________.
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cell theory
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