1. Compare Evelyn's technique with Kwan's technique.

2. Whose technique is the correct one?

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.

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?

The excretory system,need answers for all: )