D, Trying a new exercise can cause your body to work the wrong way. Exercising too hard can overwhelm your muscles and strain them. Exercising too long can overwork muscles.
A is incorrect. Eating nothing but fruits will not provide you with the right amount of carbohydrates and proteins everyday. C is incorrect. It is not enough that we eat one of each food group since we have target calories per food group. D is incorrect since calcium is not only what our body needs. B is correct, we have target number of calories each day in our diet.
The muscles of the ventricles depolorize.
Answer:
B. Adult flies have emerged from the shells
Explanation:
A pupa is the life stage of some insects undergoing transformation between immature and mature stages. The pupal stage is found only in insects that undergo a complete metamorphosis, with four life stages: egg, larva, pupa, and imagoa, therefore, an empty pupae means the insect has emerged from the pupae by splitting the pupal case and leaving it empty
