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Ester linkages are found in which type of biological macromolecule?

Which property of water is seen when sweat is released by your skin and the water in sweat goes into the gaseous phase? Briefly explain why your skin feels cooler when this occurs.  [2 pts]

The salt NaCl is an example of:

The _________ is the smallest unit of organization that can perform all activities required for life.

True or False: In a solution, the solvent is the dissolving agent.  The solute is the substance that is being dissolved.

How many neutrons are in the following isotope?  

The smallest unit of matter that still retains the properties of an element is:

True or False: A hypothesis is an explanation, based on observations and assumptions, that leads to a testable prediction.  A hypothesis on supernatural events can also be explained through experimental tests.

In a protein’s ________________ structure, hydrogen bonds can form between the R groups of the polypeptide’s amino acids.

Which of the following is an electronegative atom?