Cellulose is a complex carbohydrate that makes up the cell walls of plants. which of the following elements are main components of cellulose?
a. calcium and chlorine
b. carbon and hydrogen
c. potassium and chlorine
d. sodium and hydrogen

Why is it important that fibrin is insoluble in water?

To be or not to be that is da question

Ras is a g-protein that is activated when a growth factor attaches to egfr. its activation results in the replacement of a gdp molecule with a gtp molecule, thus allowing a signal transduction pathway to be activated. considering the signal pathway illustrated on this page, what is one potential outcome of a mutation in the ras gene that leads to ras protein hyperactivity. be specific.