It's some change in the conditions around the organism, which the organism can detect and respond to. A change in temperature, more light, or something physically poking the organism are examples.
        
             
        
        
        
Answer:
The reactants for photosynthesis are light energy, water, carbon dioxide and chlorophyll, while the products are glucose (sugar), oxygen and water.
Explanation:
can I please get brainliest
 
        
             
        
        
        
Answer:
Emulsifier generally reduces the surface tension of the lipid  there by helping in the digestion of the lipid molecules.
Explanation:
Bile that is secreted from liver act as emulsifier because the bile helps in the break down of lipid into small molecules to form micelle thereby reducing the surface tension of the lipid molecules.
                   Due the formation of micelle the broken down lipid molecules binds to the active site of the lipase enzyme and get digested to form fatty acid and glycerol.
            Beside digestion Emulsifier Bile also helps in the absoption of lipid from the small intestine.
 
        
             
        
        
        
Answer:
The correct option is B. The stage of a virus where it is activated to perform the function for which it was intended is referred to as the triggering phase.
Explanation:
The life cycle of a virus consists of the following stages:
The Dormant phase:
In this phase, the virus doesn't take any action. It just manages to get into the system or software.
The Propagation phase
In this phase, the virus makes copies of itself.
The Triggering Phase
In this phase, the virus performs its function.
The Execution Phase
In this phase, the destruction made by the virus can be seen.  
 
        
             
        
        
        
I have no idea what that means but the answer is b