Answer:Non-Polar and Neutral, Polar and Neutral, Polar and Acidic, Polar and Basic
Explanation:
 
        
                    
             
        
        
        
Diffusion is the type of transport that oxygen and carbon dioxide use to cross the cell membrane
 
        
             
        
        
        
Well, flowers give insects like bees and butterflies nectar. That's their food. In return, the insects spread the flower's pollen so that other plants like its type can be fertilized. 
This is mutualism - a symbiotic relationship were two organisms benefit.
Happy to help!
 
        
                    
             
        
        
        
This feature of DNA is termed complimentary base pairing, in that the base that compliments a certain base, say A, is always paired with base T, and likewise every T has its pair partner always as A. The same holds true with C with G, and vice versa.
        
             
        
        
        
Answer:
The answer is D.
Explanation:
The way x-rays are produced is as follows; using a vacuum environment in a tube, the cathode is heated to a degree where it releases electrons, then these electrons collide with the anode releasing energy that create the x-rays.
All of the options are correct. Although the electron most likely won't stop, it will slow down and change direction after the collision. The law of conservation of energy is also applied in this situation, meaning that the kinetic energy of the electron released by the cathode will transfer to the anode to produce the x-rays. Most of the energy after the collision is converted into heat, which is why the metal used as the anode can heat up to 2000 degrees celcius.
I hope this answer helps.