Biology: The Dynamics of Life, California Edition

Section 1: Atoms and Their Interactions

Atoms and Their Interactions

1.
Substances such as lemon and tomato, with a pH __________, are considered acidic.
A)equal to 14
B)equal to 0
C)below 7
D)above 7
2.
__________ results when a multiple substances are combined, with each substance keeping its individual properties.
A)An atom
B)A mixture
C)An ion
D)A solution
3.
Which of these symbols represents copper?
A)Ca
B)Co
C)Cu
D)Cl
4.
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According to the table, which of these is NOT considered a trace element?
A)boron
B)iron
C)oxygen
D)cobalt
5.
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Which element does this figure represent?
A)neon
B)carbon
C)sodium
D)hydrogen
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