Balanced forces are forces that are equal in force but opposite sides. Mary would need to push on the opposite side of Trey with the same force of 30N. (I provided a photo to visualize)
 
        
        
        
 He did this by experiment with anthrax. Using a microscope, Koch analysed the blood of cows that had failed of anthrax. He marked rod-shaped bacteria and supposed they caused anthrax.
<h3>What does anthrax do to a human?</h3>
Anthrax induces skin, lung, and bowel disease and can be fatal. Anthrax is analysed using bacterial cultures from infected tissues.
 There are 04 kinds of anthrax: cutaneous, inhalation, gastrointestinal, and injection.
 Anthrax is cured by antibiotics.
Thus,  He kept rod-shaped bacteria and supposed they caused anthrax.
To learn more about anthrax click here:
brainly.com/question/14097765
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The proprioceptors
The proprioceptors such as muscle
spindle and golgi tendon organ are sensors located in the limbs. The proprioceptors
give information about muscle length, muscle tension and joint angle which is coordinated
to provide information about the limb’s position in space.
 
        
                    
             
        
        
        
Initiation, elongation, and termination
        
             
        
        
        
Answer:
interaction between two different organisms living in close physical association, typically to the advantage of both.Compare with antibiosis.
a mutually beneficial relationship between different people or groups.
Explanation: