Answer:
Feathers initially evolved in a role associated with sexual selection.
Explanation:
In species where only males had feathers, these feathers can be considered to have evolved into a role associated with sexual selection. This is because in these species, males used their feathers as a sexual attraction for females, in this case, females chose the males that had more attractive feathers to mate and generate new individuals for the species. An example of this can be seen in the peacock, where the tail with lush feathers is only present in males and is intended to sexually attract females.
 
        
             
        
        
        
Answer:
Her eyes send signals to the brain. Her brain gets the signal and sends another one through her nerves to her muscles. Her muscles then move her arm or leg toward the ball to try and block it. 
Explanation:
Simple science. If I could help you, you are welcome. if I couldn't I'm sorry.
 
        
             
        
        
        
Costa Rica is surrounded by the Pacific Ocean and the Caribbean Sea. It also borders the Gulf of Nicoya.
 
        
             
        
        
        
Answer:
Atoms combine when their electrons are shared or transferred
 
        
             
        
        
        
Cholesterol is a component of cell membranes and is an example of steroid