Which of the following characteristics of water is most responsible for the sinking of the Titanic?
A. The temperature of liquid water rises and falls slowly.
B. Water is liquid at room temperature.
C. Frozen water is less dense than liquid water.
D. Water molecules are cohesive.
E. Water has a high heat of vaporization.
Answer: C
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A) TACGCAAT. B) UAACGCAU. C) UACGCAAU. D) AUGCGAAU.
The hard exterior of crabs and lobsters is:
a. chitin. b. triglycerides. c. glycogen. d. cellulose. e. based on wax polymers.
The autonomic nervous system contains the sympathetic and the parasympathetic nervous system.
a. true b. false
When we look at infectious disease statistics for the global human population as a whole, we find the number one cause of death is
A) malaria. B) parasitic diseases such as worms. C) respiratory infections. D) heart disease.