What is the dark brown pigment in skin called?

The reactions that occur in the ribosome, where amino acids are combined to form proteins are anabolic or catabolic?

Plants transfer carbon in the carbon cycle a. through assimilation of carbon from the soil. b. when carbon transpires from their stomatae. c. when they are eaten by animals. d. through fixation of carbon in the soil.plants transfer carbon in the carbon cycle a. through assimilation of carbon from the soil. b. when carbon transpires from their stomatae. c. when they are eaten by animals. d. through fixation of carbon in the soil.

An infection of the pulp and the surrounding tissue in the mouth is called