What method of transport is required when molecules must be moved against the concentration gradient? A. diffusion
B. Active transport
C. facilitated diffusion

Complete the following statements about the functions of the digestive system.carbohydrates and fats are digested in secretes enzymes that aid in the digestion of carbohydrates, fats, and proteins.the secretes bile; bile is stored in undigested food is processed into feces in feces is then stored in until it is eliminated from the body via

The chromosomal structure that limits the number of cell divisions of a cell is the the chromosomal structure that limits the number of cell divisions of a cell is the kinetochore telomere histones centromere

Wich level of organization includes all the other levels or organizations