After which event would you say that evolution has occurred?

(A)
An animal's white winter coat is replaced by a darker coat in the spring.

(B)
An allele frequency in a population changes over time.

(C)
A new predator comes into an environment

(D)
An individual is born with six fingers on one hand instead of five.

Which organism is the producer in this food web? 7th grade question. a) arthropods b) birds c) fungi d) plants

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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?