<span>An example of concentric contraction is doing a biceps curl. The curl exercise is targeting the biceps muscles on the front of the upper arm and only several muscles assist during the movement. Moreover, concentric muscle contraction is a type of muscle activation that increases the tension on a muscle as it shortens and this activation begins the process of muscle strengthening and hypertrophy. </span>
Your heart rate might be higher on a regular basis, and your fitness levels may go up because you are training your body and it is adapting to what you are doing. you can monitor it by measuring how far you run, doing blood pressure, checking your pulse etc
I believe the answer for your question is C
1.An infant's automatic and coordinated pattern of movements is called Reflexes. There are reflexes already present when the infant is born such as the Sucking reflex while others would be present later on. 2. The form of speech in which the meaning is clear but words are left out is called the Telegraphic Speech.
3. The common reaction of infants especially when the mother is absent is Separation Anxiety. This kind of feeling can still be there even on the later life.