Which must a animal do for cellular respiration to begin?

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d.a round-trip ride to school and back

The distribution of related animals and plants across the world

Omg substrates with the same size and shape as the active site will bind to the enzyme. why is the key labeled the “bad” substrate?