sucking is an example of inherited response. when children are born, they possess five main instinctual responses which include, sucking, crying, smiling, clinging and following. these responses act together to foster the bond between mother and the child. in most cases this traits are not programmed in human DNA but are just inherited spontaneously.
Cardiovascular system, from my understanding.
I am not sure because there may be more context, but here is what I am guessing the answer is.
As Bryson pedaled uphill both his heartbeat and breathing rate increased. His breathing rate increases to provide the body (more specifically, exercising muscles) with oxygen at a higher rate and his heart rate increases to deliver the oxygen (and glucose) to the respiring muscles more efficiently.
I believe the correct answer from the choices listed above is option C. <span>Most of Earth’s dry air is made up of nitrogen and oxygen. Approximately, air is made up of 21 percent of oxygen and 79 percent of nitrogen. Hope this answers the question. Have a nice day.</span>
