In facilitated diffusion, substances move into or out of cells down their concentration gradient through protein channels in the cell membrane. Simple diffusion and facilitated diffusion are similar in that both involve movement down the concentration gradient.
Answer:
If they didn't differentiate then the stem cells would stay the same type and if it somehow kept multiplying then they would just be a massive blob with no actual form or way of functioning.
1. Identify the energy transformations in the following actions. (10 points)
Turning on a space heater
Dropping an apple core into the garbage
Climbing up a rope ladder
Starting a car
Turning on a flashlight
The bladder is the muscular organ that holds urine
