What diagnosis might a doctor give to greta who has thin, brittle hair and nails, yellowish skin, and downy growth on her face and arms? a. substance abuse b. anorexia nervosa c. illness anxiety disorder d. bulimia nervosa?

What's the waste product of electrons and pyruvate combining in fermentation?  

Lactase is essential for digesting lactose in milk. this enzyme is specific for this sugar. why? molecules and active sites vary in size; only properly sized molecules can fit.there is a precise compatibility between the active site and the lactose molecule.specificity refers to the action of the enzyme, such as hydrolysis, and relatively few molecules can be hydrolyzed.reaction-specific enzymes assume a fit by folding around the most numerous substrate molecules.

Which of the following leukocyte is not correctly matched with its function? lymphocytes: immune response against viral infections eosinophil: bacterial macrophage monocytes: macrophage basophils: inflammation eosinophil: bacterial macrophage