A) weapons for an evolutionary arms race w/ disease causing organisms
        
                    
             
        
        
        
If I am not wrong, I believe the answer is Producers. The reason as to why I say that producers is the answer is because in every food chain, there needs to be a base. That base is what provides the starting energy that will later on move up in the food chain.
        
             
        
        
        
Answer: 1-TT, 2-Tt, 3-Tt, 4-tt
Explanation: It is pretty simple. you just have to match every letter together. Also, the genotype of this is 50% Tt (which is crossbred), 25% TT (which is tall), and 25% tt (which is short).
I hope this helped you out!
 
        
                    
             
        
        
        
I think it is called mechanical digestion.  Or alas, chemical digestion.  One of those.  Or both!
Hope helps-aparri
(thank yous are welcome)
        
             
        
        
        
Answer:
Plasmolysis
Explanation:
In the image 1 the cell is having sufficient quantity of water leading to a turgid cell.
The image 1 plant cell is in a dilute solution in which water enters into cell from external medium.
The image 2 plant cell is exposed to a solution which is high concentrated solution.
Due to this high concentrated  solution the water present in  the cell is send out by exosmosis.
Due to loss of water from plant cells the protoplasm in plant cell shrinks in which cell membrane gets separated from  cell wall.
This shrinkage of protoplasm by loss of water is called plasmolysis.