¿Cuáles mecanismos fisiológicos causan un incremento de la rapidez y la profundidad de las respiraciones durante el ejercicio? ¿Por qué es necesario tal
incremento?

The ultimate purpose of respiration: a. inhale 02 and exhale co2 b. place oxygen in the lungs c. place oxygen in the blood d. deliver oxygen to every blood cell

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 statement best addresses the differences in sex cell differentiation between the red-eared slider turtle and a human?