What chemical is in plastic bottle and how it affect humans?

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.

Melissa is interested in her family tree and how her family has changed over its many generations. melissa probably more closely resembles

The tendency of water molecules to stick together is referred to as a) adhesion b) polarity c) cohesion d) transpiration e) evaporation