The term “designer drugs” refers to drugs that are created in a laboratory (typically, an “underground,” or secret, illegal lab). A designer drug is created by changing the properties of a drug that comes from a plant—such as cocaine, morphine, or marijuana—using the tools of chemistry.
Weathering will be the correct answer to the question you have asked.
Answer:
Dynamics-system theory.
Explanation:
Stress may be defined as the mental condition that can cause anxiety, depression or tension. Small stress improves the condition of an individual but high stress can cause long term depression.
The dynamic system theory states that motor development occurs with the changes in the development system and explains the new motor abilities in children. This theory also explains the transitions that might occur in the individual during the stress condition.
Thus, the answer is dynamics system theory.
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
