Competition among individuals for available food sources
        
                    
             
        
        
        
Answer:
Explanation:     RR Rr
there will be no recieive trait
 
        
             
        
        
        
Answer:
B
Explanation:
Y chromosomes are the male chromosome. A person with an XY sex chromosome pair will be male while that with an XX sex chromosome pair will be female. This is because the Y chromosome has a male-determining gene called the SRY. This gene is responsible for the development of testis. 
 
        
             
        
        
        
Answer:
The correct answer is - crystal form (external shape).
Explanation:
Physical properties are used for the identification of the minerals that include specific gravity, streak, texture, luster color, hardness, cleavage, and crystal form.
The most common physical property of the minerals in crystal form or external shape of the mineral. This is the property of the mineral that gives an idea about the homogenous possessing a 3-D internal order.
 
        
             
        
        
        
Answer:
October
Explanation:
October is one of the hurricane season months