Our bodies are penetrated by x-rays but not by visible light. is this because x-rays travel faster than visible light? yes or no?

For the following, determine the type of reaction and then give products.

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

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.