I am pretty sure that 76 meters is the answer.
Answer: Some mammals live in water all have hair or fur.
Explanation:
The answer is lyric cycle
C ........................i think
The brain's suprachiasmatic nucleus regulates the body's circadian rhythms. The suprachiasmatic nucleus is a minute region of the brain located in the hypothalamus above the optic chiasm, the circadian rhythm is the 24-hour cycle of organisms, related to sunlight and temperature.