Answer:
A. External
Explanation:
External stimulus includes touch/pain, vision, smell, taste, and sound.
Answer:
Let R1= resistance of 4ohms
R2= resistance of 8ohms
Equivalent resistance R will be
R=R1 + R2
=> 4+8=12ohms
The current through the two resistors will be the same since they are connected in series. Notwithstanding, the voltage will drop to appreciate the change.
Explanation:
I believe the energy released in cellular respiration is in the form of ATP.