Answer: if they help you break down food
Explanation:
Mutualism is a biological relationship between TWO or more organisms of different species (inter-specie) in which one or more benefits. 
A good example is bacteria in the human intestine that helps to break down cellulose contained in food, thus benefitting humans.
 
        
             
        
        
        
As the human population increases, stressors are being placed on the environment. <u>Decreases in availability of </u><u>natural resources</u> is one consequence of this growth. 
Population- A population is the total number all organisms belonging to the identical species that really are present in a given location at the same time and have the potential to interbreed. Individuals need to be able which can mate with other members of a population and give birth to viable children for interbreeding to take place.
Natural Resources- Without human assistance, natural resources are present on planet. We can get water, wood, food, and energy from natural resources. Without natural resources, life is not conceivable. Oil, coal, natural gas, metals, stone, and sand are examples of natural resources. 
To know more about the Human Population, click on the below link, 
brainly.com/question/28725584
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The three processes are photosynthesis, decomposition, respiration.
        
             
        
        
        
Answer:
The source regions of the world's principal air masses: continental Arctic (cA), continental polar (cP), continental tropical (cT), maritime polar (mP), maritime tropical (mT), and maritime equatorial (mE).
 
        
             
        
        
        
What species are you referring to?