It helps with the optic nerve, if you give me options i can help answer. Sorry if I didnt help :)
 
        
             
        
        
        
Answer:
a)by the process of fermentation
b) organism involved in it are yeast
 
        
             
        
        
        
Answer:
Plant is a common example of a Producer.
Producers are also known as autotrophs.They are organisms which make their own food. They do so by getting energy from chemicals or the sun and with the help of water convert the energy into useable forms such as sugar.
The order of Producers that colonize the land After Lichens include
Annual herbaceous plants
Perennial herbaceous plants and grasses
Shrubs
Shade intolerant trees
Shade tolerant trees.
 
        
             
        
        
        
Both a and b is an example of population increase of favored organisms.