Answer;
ATP is needed to relax the muscles;
Muscles require more energy even if they are not very active in the moment because ATP or energy is needed for their relaxation.
Explanation;
Relaxation of muscles takes place when the stimulation of nerves stops. Calcium is then taken back into the sarcoplasmic reticulum breaking the link between actin and myosin. Actin and myosin return to their unbound state causing the muscle to relax. ATP is involved in displacing actin from myosin head. Therefore; ATP is required for muscle relaxation.
You can use punnet squares to see possible percentages of genes of the offspring
Turn off the water when it is not needed; for example, turn off the water when you brush your teeth, turn off the water when you’re scrubbing your body and hair in the shower with soap (only turn it back on when you want to rinse).
To summarize: TURN OFF THE WATER (when it’s not needed) :)
Answer:
B. a food chain
Explanation:
Food chain: a hierarchical series of organisms each dependent on the next as a source of food.