What are two functions of capillaries? allows blood to gather waste products from cells
transmits messages to the brain
permits blood to receive O 2 from lungs
determines skin color
connects various organs together

How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit