One of the signs that sleep is necessary is that all living creatures are harmed by lack of sleep. Correct answer: A Sleep serves important evolutionary functions for all animals, because sleep helps animals consolidate memories and learn. Animals sleep according to how much they eat – animals that eat food with a lower caloric density sleep less than others. However, lack of sleep and if the deprivation is long enough it can kill animals.
The system that prepares food for absorbtion into the bloodstream is the digestive food. It makes sure the food in the stomach is broken down.
You can develop life skill during the late stage of infancy and the early stages of childhood. For infancy a certain individual will start to became aware of things around him but on the later stage he can learn to speak and walk.
