The fact that water is less dense as a solid than as a liquid explains why:

A) water is such a good solvent.
B) water can resist temperature changes.
C) ice floats on top of liquid water.
D) ice cubes sink when placed in a glass of water.
E) oil never dissolves in water.


C) ice floats on top of liquid water.

Biology & Microbiology

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What will be an ideal response?

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Which component of a muscle does the calcium ion combine with to allow a contraction to occur?

A) myosin head B) actin C) troponin D) T tubule

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Which of the following items is NOT a part of the name of a restriction enzyme?

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