The correct answer is blood type. 
The blood type of the individual in determined by the genes they inherit from their parents, it has no environmental influence.
The skin color is determined by the genes, but the main reason behind the presence of the skin color is melanin pigments. The melanin pigments present in the skin can increase to a significant level, if the exposure to sun is more. So, it is not alone determined by the genes. 
The athletic ability and the muscle mass are acquired by exercising and physical training. It has a little genetic influence, it is mainly determined by the amount of exercise a person do. 
 
        
                    
             
        
        
        
Answer:
Lightly pigmented people tend to be at higher risk of vitamin D deficiency
Explanation:
BACKGROUND KNOWLEDGE: 
Human skin is the largest organ of the body which makes boundary line between environment and internal conditions.  Human skin cell produces pigment called melanin when ever it is subjected to Sun. More the melanin pigment produced more will be the skin darkens. Ultraviolet (UV) radiations also come from Sun and responsible for more pigmentation.
ANSWER EXPLANATION:
According to the question darkly pigmentation only occurs when their is high level of UV radiations. High level of UV radiations are also responsible for Vitamin D production. 
People with lightly pigmented means that there environment has low level of UV radiations which are the requirement of Vitamin D production. Hence due to low UV radiations peoples with light pigmentation's are also be at higher risk of vitamin D deficiency
 
        
             
        
        
        
Answer:
B. Simple Cuboidal
Explanation: 
Because the simple cuboidal epithelium consists of a single layer of cells that are as tall as they are wide. The important functions of the simple cuboidal epithelium are secretion and absorption. This epithelial type is found in the small collecting ducts of the kidneys, pancreas, and salivary glands.
 
        
             
        
        
        
Answer:
The correct option is : It undergoes a lysogenic cycle.
Explanation:
A virus can replicate inside a host cell by two process : 
In the lytic cycle, the viral DNA makes copies of itself and manufactures the viral machinery inside the host cell. Eventually, the host cell bursts causing the release of the viruses. In such a condition the varicella virus would cause chicken pox.
In the lysogenic cycle, the DNA of a virus get incorporated into the DNA of the host. The viral DNA might replicate when conditions become favourable and cause diseases. In such a condition, the varicella virus would cause shingles.
 
        
             
        
        
        
Hi, 
I’m pretty sure the muscle moves the chicken wing. I had to do a lab and this is what I was told.