Answer:
option C is the correct option
 
        
             
        
        
        
Parasitism
Explanation:
This relationship in which the heartworms gets nutrient from the host and in the process, the host eventually dies from infestation is known as parasitism. 
- The organism that houses the heartworm is called the host 
- The heartworm in itself is called the parasite. 
- Parasitism is a positive - negative relationship in which one organism feeds on the other and causes harm to it in the process. 
- Plasmodium falciparum is the parasite of malaria in man. 
- In commensalism, one organism depends on the other without causing harm to it. Example is cattle and egret. 
- Mutualism is a positive - positive relationship in which both organism derives benefits from the other. Example is lichen. 
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This is an example of negative feedback. 
After a big meal, glucose levels in the bloodstream increases. The body recognises this change and goes through homeostasis, or the regulation of bodily state or internal environment.
The pancreas secretes insulin, which then binds to insulin receptors. This will result in the uptake of excess glucose from the bloodstream into cells and converted into glycogen to be stored in cells as energy storage molecules. 
Since there is the counter effect of body (i.e. when blood-glucose concentration increases, the body sends a signal to decrease the blood-glucose concentration, this is called a negative feedback (instead of a positive feedback, which occurs if for e.g. the body signals cells to increase blood-glucose concentration even after blood-glucose concentration increased after a heavy meal).
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Answer:
Each one is fromt the plant cell
Explanation: