Answer: Food and space 
Explanation:
Think of the squirrels and birds. They both reside on trees and they compete for the resources like space and food available on the trees.
The fruits that is available on the tress has competition between the birds and squirrels.
Both of the organism also have competition for the space to live. Though birds are not available at the day time but they come to stay on trees at evening and night.
The squirrels have a better grip to fruits in their hands so that the birds cannot get it from them.
Squirrels also move on the land for the food so that they have less competition on trees for food.
 
        
             
        
        
        
Useful traits have been accumulated in plants and animals over the centuries by how plants have undergone through certain phases, specifically called selection. Most of these traits are accumulated naturally but others may be acquired in the opposite way through man-made cultivation. Hope this answers your question.
        
             
        
        
        
A tropical climate is found near the equator.
 
        
                    
             
        
        
        
Explanation:
i believe it is because the domesticated breeds were bred specifically through generations in order to serve a specific purpose, for example dogs could be bred for hunting or herding, etc and chickens could be bred for eggs or meat, etc. but in the wild, their only job is to survive and reproduce.
 
        
             
        
        
        
If there was any air conditioning making the bubbles go in different directions. If you used more solution than you did with other. Bubbles if you didn’t blow the same amount of times for each bubble. If you didn’t blow with the same air flow