Cell Communication

Question 1

Cells can signal to each other and interpret the signals they receive from other

Answer 1

cells and the environment.

Question 2

The signals may include

Answer 2

light and touch, but are most often chemicals.

Question 3

The flight response shown here is triggered by a signaling molecule called

Answer 3

epinephrine (also called adrenaline; see the space-filling model included here).