Likely the chronological age, mainly because it would explain the differences in puberty stages between the two boys, which is an example of physical maturation.
Common challenges are mental illness and bad self-esteem. Some individuals become depressed, and start having suicidal thoughts, others feel anxious to speak about themselves openly. If society showed more acceptance, individuals may be happier, and will not have as many problems to face.
A Muscle Contraction Is Triggered When an Action Potential Travels Along the Nerves to the Muscles. Muscle contraction begins when the nervous system generates a signal. The signal, an impulse called an action potential, travels through a type of nerve cell called a motor neuron.
Answer:
True, some subjects may experience emotional and psychological distress
Explanation:
In this research, the most likely additional risk cannot be a risk related to privacy or confidentiality because this has been taken care of. However, this research requires adult to think of unpleasant childhood memories, which has the ability to cause emotional and psychological distress. There's no one who enjoys child abuse, and one of the most difficult thing faced by victims of child abuse is that they find it very difficult to talk about it because of shame and the distress attached to it.
Chewing is also know as Mastication. Therefore, D is your answer. Hope I was able to help!
