What is it called when protein carriers are used with diffusion to move things across the cell membrane?

The shift of a vehicle's weight around its center of gravity is known as

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above

Iwill mark brainliest and all that sha-bang. what is the function of the endocrine system? a. control longer term response in the body. b. transmit messages throughout the body. c. remove waste from the body. d. all of the above