General Systems Theory is based on the assumption that there are universal principles of organization, which hold for all systems, be they physical, chemical, biological, mental or social. The mechanistic world view seeks universality by reducing everything to its material constituents.
The Muscular System moves parts of the body and operates internal organs.
Answer: Overload
Explanation: because he lifted heavier weights now he is in pain.
Trees store carbon dioxide, which is released when cutting them down, burning them or making them into pulp for paper production. And, as you might expect, this contributes to global warming