Chemical reactions that take place inside living things are called biochemical reactions. The sum of all the biochemical reactions in an organism is called metabolism.Metabolism includes both exothermic (energy-releasing) chemical reactions and endothermic (energy-absorbing) chemical reactions.
        
             
        
        
        
A. instinct.<span>Instinct is the tendency of an animal to exhibit a particular complex behavior.</span>
        
             
        
        
        
6 images:
 1 2
3 4 
5 6
Interphase: image # 4
Prophase: image #6
Metaphase: #1
Anaphase: #3
Telophase: #2
Cytokinesis: #5
        
             
        
        
        
Red blood cells is the Andes