N Question 4
1 pts
Cholesterol is made by the liver. It is a precursor to sex hormones and vitamin
D. It is also a part of our cell membranes. Cholesterol is
not an essential nutrient
an essential nutrient
O it depends on your medical conditions
O is essential to only vegans
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choice B

Explanation:

Cholesterol is an essential nutrient.

Despite many peoples beliefs that cholesterol is harmful, it's actually essential for your body to function. Cholesterol contributes to the membrane structure of every cell in your body. Your body also needs it to make hormones and vitamin D, as well as perform various other important functions.

Excess amounts of dietry cholesterol intake can be harmful, esp for cardiovascular diseases.

answer; ///(b) it is composed of four protein chains and four heme groups;

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .