The purpose of placental functioning that should be included in the parental class by the nurse is the Nutrition.
<h3>What is placenta?</h3>
Shortly after implantation, the blastocyst starts to develop into the placenta, a transient organ of the fetus. It is a key endocrine organ that produces hormones that control both maternal and fetal physiology during pregnancy. It also performs crucial roles in regulating nutrition, gas, and waste exchange between the physically separate maternal and fetal circulations. 
The placenta forms a species-dependent connection with the mother's uterus on one side and the fetus via the umbilical cord on the other. In humans, the placenta is ejected from the uterus along with a thin layer of maternal decidual (endometrial) tissue, which is frequently mistakenly referred to as the "maternal component" of the placenta.
Learn more about placenta with the help of the given link:
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<span>1. resting metabolic rate
2. body composition
3. creeping obesity
4. metabolic rate
5.metabolism</span>
        
             
        
        
        
It could be to avoid injuries.  One reason why there are several rules in
exercising is to ensure that a person will not get injured during a
workout.  Injuries can occur when one is
either handling too much weight, doing the exercise wrong, not using proper
equipment or does not have a partner or trainer assisting him.
 
        
                    
             
        
        
        
<span>The answer is letter C.<span>
<span>In doing
something for someone else, your mind gets off of its own troubles. Helping
someone could serve as a diversion from stresses that you experience. In doing
this, you are immersing yourself in an environment where stressors are not present.
Aside from this, the experience makes you feel socialized and well accompanied
by the presence of another, where you can share and talk about other things
other than your problems. Socializing is one of the best ways to
distress from monotonous activities and is highly encouraged by experts to be
done on a regular basis.</span></span></span>