I believe it is called a zygote...
I'm sorry that's probably not much help to you, but I tired. 
        
             
        
        
        
B. Riding a bike after school
Smoking tobacco, spending time with violent people, and using drugs are all bad and unhealthy behaviors while riding your bike promotes exercise.  
        
             
        
        
        
Always change gloves if the gloves get ripped, torn, or contaminated. Contamination can occur after using the bathroom, smoking, coughing, sneezing, and in between preparing raw and cooked foods. Food worker hands must be washed thoroughly and be cleaned before wearing new gloves.
        
             
        
        
        
Answer:
tar
Explanation:
tar is the reason your lungs go black because it is evaporated into the smoke that you breathe in and is known to be the most known cause of cancer
 
        
             
        
        
        
Answer:
No.
Explanation:
The closest is how some peoples eyes can change to a different shade or an entirely different color in the sun. This is only because the light makes your eyes produce more melanin.
Online Answer: The pigment melanin determines your eye color. Eyes with a lot of melanin will be naturally darker. ... Research has found that eye color can change in rare cases due to injury or genetics.