Answer:
Answer is C. Modern irrigation. 
Explanation:
The word 'irrigation ' means the process of supplying water or watering of land in preparation for planting and watering of planted crops to survive. 
Modern irrigation involves the construction of hoses, channels and canals. This is done so that water will be available through out the seasons for the crops, and water will be supplied to areas where there is scarcity of water. 
Irrigation is very important because it prevents famine, improves water condition in the soil by dissolving nutrients for plant use. 
 
        
             
        
        
        
Most insects are herbivores in a stage of their life, but most of the time later on they because omnivorous (plant and meat eater) so therefore they don't stay herbivorous for long. Also, most herbivorous insects get eaten quite often.
 
        
             
        
        
        
Answer:
An organism is made of many cells, cannot move on its own, and absorbs food from its environment. This organism is belongs to kingdom fungi. 
Explanation: 
Fungi are the organisms which are made of more than one cell, having true nucleus. Their cell wall is composed of chitin. Fungi grow in size by absorbing nutrients from the environment. Fungi fixed on one place and cannot move from place to place like animals. 
 
        
             
        
        
        
Mycelium-Fungi
<span>
Heterotrophic-Both</span>
<span>
Pseudopods-Protists</span>
<span>
Contain cell walls with chitin-Fungi </span>
<span>
Fruiting body-Fungi</span>
<span>
Flagellum-Protists
I hope this helps out alot. </span>
 
        
        
        
Answer:
A. a protein
Explanation:
Proteins function as enzymes in most of the catalyzing reactions, that increases the rate of reaction within cell.
Proteins are consist of multiple numbers of amino acids and the twisting and folding amino acids provide a unique identity to enzymes. Not all the proteins are enzymes but all the enzymes are proteins.
For example: Trypsin, Pepsin, and Lipases.
Hence, the correct option is "A. a protein".