Dilation of the pupil occurs when the smooth cells of the radial muscle, controlled by the sympathetic nervous system (SNS), contract. Constriction of the pupil occurs when the circular muscle, controlled by the parasympathetic nervous system (PSNS), contracts.
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.
Answer:
Star fish
Explanation:
They are star shaped and belongs to the class asteroida, they are found in the inter tidal zone.
<span>Amino acids are important to the body because they build A. complete protein.
Amino acids are considered to be the building blocks of proteins. Proteins are essential because they make up around 20% of the body. They also have important roles in many biological processes including DNA replication. There are 20 amino acids that are used to make proteins. Essential amino acids are those that cannot be synthesized by the body, while non-essential amino acids are those that naturally occur in the body.</span>
