Darwin's suggestion anticipates phylogenetic bracketing, a method based on that uses characteristics of organisms in a clade to make predictions about the common ancestor of the clade and all of its descendants.

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?

This is an active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient

How far down have geologists drilled holes ? (science) a: 3.8 km b: 12 km c: 100 m d: 1200 km