The homo sapiens appeared after two million years ago.Some of them spread from Africa into Asia and Europe.
Answer:
cell cycle (become two cells) or not grow
Explanation:
Answer:
hope you like it
Explanation:
Examples of natural systems include: real number system, solar system, and planetary atmosphere circulation systems.
Natural physical systems include the solar system and an animal's digestive system. Human-made physical systems include mechanical systems, optical systems, electrical systems, and combinations of these. The names of these systems come from the type of energy they use.
Her metabolism reduces so as to reduce the amount of heat the body is producing. This reduces the risk of overheating/hyperthermia. During metabolism, approximately 60% of the energy produced is released as heat. This coupled with the high temperatures in the classroom increases her core temperatures. Due to the reduced metabolism, Anna feels sleepy since the body processes become slow in a homeostatic feedback response.
