¿que parte de la célula almacena material dentro de la celda?

During the winter, this species of fox has white fur, but in the summer, it has brown fur. what environmental change may have lead to this fox's fur color? snow cover increase in sun's brightness volcanic eruption global warming

This is a scaffolding of protein fibers that us sell keep it shape in a cell division and cell movement

Add solid urea to a beaker of water. the beaker gets very cold. is δh favorable or