When the race is almost to begin, nervous system sends signals to the heart causing the respiratory rate to increase. since there is an increase in heart rate, breathing and sweating becomes increases in order to maintain a normal body temperature.
Answer:
The tilt of the moon's orbit around the earth
Explanation:
On average of twice a year, throughout it's orbit, the moon will create a 180° angle with the Earth making the Earth's shadow visible on the surface of the moon causing a solar eclipse.
Ribosomes.
Additional Info:
It uses these ribosomes to make proteins for transport.
