The scientific inquiry or scientific method is a systematic approach used in means of acquiring new knowledge and it is not just a rigid sequence of steps because they are made uniquely in which the way that they are being followed is based on the problem that is trying to be solved that makes it something that is not a rigid sequence.
        
             
        
        
        
Answer:
D
Explanation:
I don't have time to explain but trust me lol
 
        
             
        
        
        
Speed = distance ÷ time. 
1864/42=44.38
        
             
        
        
        
Answer:
680
Explanation:
When the P680 special pair of photosystem II absorbs energy, it enters an excited (high-energy) state. Excited P680 is a good electron donor and can transfer its excited electron to the primary electron acceptor, pheophytin.