Exit which of the following is true of gases?
a. they have a definite shape.
b. they have a definite volume.
c. they have a relatively high density.
d. they have the ability to diffuse through other gases.

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.