What is humidity?

a. A measure of how warm it is outside
b. A measure of how much water vapor there is in the air
c. A measure of how many clouds there are in the area
d. A measure of how much rain there is in the upper atmosphere

Monomers are the building blocks of larger molecules, called polymers. for example, proteins are composed of chains of amino acids that are linked together. cellulose is a polymer that makes up plant cell walls. cellulose is made from a chain of c6h10o5 molecules. which monomers are most likely used to produce cellulose? why?

Which direction does the energy flow in this energy pyramid ?

Physical characteristics of down syndrome