Marlee displays a cognitive symptom of emotion when she: Please choose the correct answer from the following choices, and then select the submit answer button. has a hallucination. appears to lack emotion. cannot focus her attention. expresses a delusion.

answer; fulfilling a goal of the president's council of physical fitness and sports;

answer; the rudder on ship ;

answer; sex,attention,sleep,thirst, and hunger and many other vitals;

i believe the answer is: true

our brain need to reach a certain level of development   before it could interpret and understood sound with high difficulties. to proof this, we just need to pay attention in musical preference between children and adults. it is far less likely that children would enjoy things such as orchestra or rock band as much as adults due to the difference in this ability.