It determines if the baby would be a girl or boy depending on the number of chromosomes  provided by each party(egg and sperm)
        
             
        
        
        
Because the acid helps the stomachs digestion system digest
        
             
        
        
        
The protein in the question can be referred to enzymes since its made of protein. The first statement is the answer
        
             
        
        
        
Chage identity of a substance
        
             
        
        
        
Answer:
<h2>
merocrine, sebaceous, and apocrine</h2>
Explanation:
Merocrine: merocrine sweat glands are widely distributed across the body surface,
Sebaceous glands are located where hair follicles have existed,
apocrine sweat glands are found only in a few areas like axilla. Apocrine -are restricted to specific areas like the axilla, nipple of the breast, pubic region and around the anus area etc.