Answer:
Surfactant increases airflow. It has this effect on airflow because it reduces resistance to lung inflation. Airflow increased as predicted.
Explanation:
Pulmonary surfactant is a complex mixture of lipids and proteins secreted by the Type II alveolar cells. The major component of surfactant, dipalmitoyl-phosphatidylcholine (DPPC), is an amphiphatic phospholipid. The main function of the pulmonary surfactant is to reduce the surface tension at the air/liquid interface in the lungs by forming lining layer between the aqueous airway liquid and the inspired air. prevents alveolar and airway collapse at end-expiration and thus allows cyclic ventilation of the lungs. It decreases surface tension in the alveoli making it easier for the alveoli to increase surface area for gas exchange. By lowering alveolar surface tension, pulmonary surfactant provides two important benefits:
(1) it increases pulmonary compliance, reducing the work of inflating the lungs; and
(2) it reduces the lungs’ tendency to recoil, so they do not collapse as readily.
<span>J.B. is suffering from: anterograde amnesia</span>
Answer: d) empathy mindset.
Explanation:
Empathy mindset is defined as the understanding mechanism of feeling and emotion of any individual.People share their feeling so that others can perceive about their state.This mindset hold certain attitude and thinking held by person regarding empathy development,management and control.
Other options are incorrect because attribution factor, checking the perception and algebraic expression does not relate with empathy increment or decrement. Thus, the correct option is option(d).
<span>The correct answer is Changing climates and nomadic enemies forced them to resort to alternative forms of sustenance. Shifts in climate force transitions in lifestyle. Invasions by nomads also compelled them to seek other ways of sustenance. As a result, they had to return to hunting and gathering at times. </span>
