Those receptors are located in the head, where the eyes and ears are located.
        
                    
             
        
        
        
Answer:
For early earth, it was filled with loads of oxygen and could kill humans if they breathed the oxygen that was in the air about 100 million years ago. This massive amount of oxygen cause massive creatures like the dinosaurs to exist. Current earth has an atmosphere with not too much oxygen.
Explanation:
brainliest
 
        
             
        
        
        
Read the "things that matter'
        
             
        
        
        
The Earth will perform 366.25 rotations per revolution about the Sun.
<h3>What is Revolution?</h3>
This is defined as the motion around the Sun along its orbit which is common with planets such as the Earth.
The Earth rotates 366.25 times around the Sun and which is equivalent to a calendar year which is used for time keeping.
Read more about Revolution here brainly.com/question/16533738
 
        
             
        
        
        
It would be an oncogene, these can be inherited mutations of proto-oncogenes that cause the oncogene.