Neither, humans don't have an estrous cycle, instead the females have a menstrual cycle.
        
             
        
        
        
Answer:
A plant's stem is what the plant uses to carry water and nutrients up or down. It also supports the plant and conducts glucose to other parts of the plant.
Explanation:
 
        
                    
             
        
        
        
The intestines, I believe.
        
                    
             
        
        
        
2 Tt and 2 tt or 50% for both heterozygous and homozygous recessive your welcome.