What are the options? I’ll help if u send the choices:)
        
             
        
        
        
There is no attached table, so it could not be told precisely which of the four molecules is the DNA. But, it is known that DNA consists of deoxyribose, guanine, and phosphate. 
The base unit of DNA is called a nucleotide. The nucleotide consists of a nucleobase (adenine - A, thymine - T, cytosine - C, and <u>guanine -G</u>), a monosaccharide <u>deoxyribose</u>, and a <u>phosphate </u>group. <span>By knowing this, it is easy to choose which molecule of those is the DNA.</span>
        
             
        
        
        
Answer:
the correct option is: 
a. causing contractions of the uterine smooth muscle during childbirth.
Explanation:
The question is: what is oxytocin responsible for?
a. causing contractions of the uterine smooth muscle during childbirth.
Oxytocin is responsible, being this the correct answer.
b. prevents the formation of goiters.
Thyroid hormone regulates this process.
C. Prevent the release of insulin from the pancreas.
Hormones epinephrine and norepinephrine.
d. milk production by the mammary glands.
It is prolactin who is responsible for this process
e. regulating blood calcium levels.
They are the parathormone and calcitonin.
 
        
             
        
        
        
I believe the first answer is #4 and the second is #1. Please correct me if I am wrong. 
        
             
        
        
        
Answer:
there is an association between the number of mitochondria in muscle cells and energy production
Explanation:
Mitochondria generate energy by generating adenosine triphosphate (ATP), which is referred to as the "molecular unit of currency" of the cell since this molecule provides energy for diverse cellular processes