The examples of positive feedback loops are as follows:
- contractions during the process of giving birth
- Blood clotting
<h3>WHAT IS POSITIVE FEEDBACK LOOP:</h3>
- Positive feedback loop is that in which a change in a given direction causes additional change in that same direction. 
- The contractions during the process of giving birth is an example of positive feedback loop because the contractions further stretch the walls and continues until birthing occurs. 
- Also, the clotting of blood causes the stoppage of blood flow. 
Therefore, the examples of positive feedback loops are as follows:
- contractions during the process of giving birth
- Blood clotting
Learn more about positive feedback loops at: brainly.com/question/11312580
 
        
             
        
        
        
Hello,
To prevent pregnancy implanted progestins contained in porous silicone tubes are inserted under the skin.
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j548831
 
        
             
        
        
        
<span>contractile vacuole
Contractile vacuoles are organelles that are responsible for excretion function. They perform osmoregulation which manages wastes, water and other needed materials in the cell. They are found in some prokaryoric organisms like the algae, protists, amoeba and other unicellular organisms. 
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Answer:
Process during which a double-stranded DNA molecule is ... This means that each of the two strands in double-stranded DNA acts as a template to produce two new strands.This allows each base to match up with its partner: each having one strand from the original DNA and one strand of new DNA