I attached the image related to your concerned question.
In theory, the part of the brain that is responsible for the sleep wake cycle is the hypothalamus; specifically, the ventrolateral preoptic nucleus of the hypothalamus. In the image, the location of the hypothalamus is pointed by the green square.
Birds-Migratory
Freshwater Fish-local endemic
Large predators-sparse distribution
The first answer is B and the second is C Because half of the kids will be homozygous black, and the other half Heterozygous white.