Answer:
Proteins. 
Explanation:
Ribosomes are complex molecules present in all living cells, they are also called organelles. It serves as the site for protein synthesis. They can be gound freely in the cytoplasm or bound to certain organelles like the endoplasmic reticulum. They consist of two major structural components: the small ribosomal subunits, which read the mRNA, and the large subunits, which join amino acids to form a polypeptide chain. 
There are 3 types of Ribosomes which are: 
• Ribosomes link amino acids together in the order specified by messenger RNA (mRNA). 
• Each unit also consist of ribosomal RNA (rRNA) molecules and a variety of ribosomal proteins. 
• Transfer ribosomes (tRNA)
 
        
             
        
        
        
Answer:
the answer is two for this question
 
        
             
        
        
        
Answer:
The gravitational pull of the moon as it orbits earth
 
        
                    
             
        
        
        
Answer: This is called chlorine
Explanation: 18
 
        
             
        
        
        
The question is incomplete as it does not have the options which are:
- going to a tailor and having a suit made to fit you
- selecting a lottery prize-winner by means of a random drawing
- going to a shoe store and trying on shoes until you find a pair that fits
- ordering the lunch special at a restaurant without looking at the menu
- picking out a video that you haven't seen yet
Answer:
Going to a shoe store and trying on shoes until you find a pair that fits
Explanation:
Antibodies are the immunoglobulin molecules secreted by the B cells which help the body providing the immunity as they interact with the antigen and help immune system to produce a response.
The variety of the B cells are produced by the body in response to different antigens which produce different type of antibodies. This interaction of antigen and antibodies is known as the complementation and just appear like if you are going to a shop to buys a pair of shoes and tries different shoes  to find the best shoe of best size.
Thus, the selected option is correct.