Answer:
The exosphere and the ionosphere 
 
        
                    
             
        
        
        
<span>If an animal learns to use a tool in one way and then is presented with a new situation in which it applies the tool, the animal is demonstrating
a. imprinting.
b. operant conditioning.
c. classical conditioning.
d. insight learning.</span>
        
             
        
        
        
The central nervous system and the peripheral nervous system
        
             
        
        
        
Answer:
the female sea otter has 1
Explanation:
 
        
             
        
        
        
1. Contains their own DNA
2. Contains ribosomes that closely resemble prokaryotic cells
3. Reproduce by fission, and they are independent from cells.