C. Combine with new atoms
This is how things are made, like oxygen (O2) and hydrogen (h2) combine to make water (H2O)
        
             
        
        
        
The answer is D. Extracellular,
the main ions involve in osmoregulation in a cell are sodium and chloride. Intra-and extracellular distribution of K+ is
influenced, for example, by Na+/K+-ATPase
function, pH, Cellular catabolism and anabolism, Insulin and glucose. Parathormone
and calcitriol are important in the homeostatic regulation of phosphates. 
 
        
             
        
        
        
Answer:
it's E) hawks
Explanation:
because the energy gets smaller as the predators increase.
 
        
             
        
        
        
Answer:
A testable question is one that can be answered by designing and conducting an experiment. The answers to a testable question can be observed and measured. Hypothesis- a testable explanation of an observation. A hypothesis is NOT just an educated guess about what you think will happen.