The first one with the boxing crab and anemone is mutualism. 
The second one with the dog and flea is parasitism.
        
                    
             
        
        
        
The ingredients in MacConkey agar supplies that supplies nitrogen are enzymatic digest of Gelatin, Casein and Animal tissue.
        
             
        
        
        
Answer:
the central nervous system, cardiovascular, respiratory, and musculoskeletal systems
Explanation:
 
        
                    
             
        
        
        
Answer:
Correct answer is ''e'' the sympatetic nervows system
Explanation:
THE ENDOCRINE SYSTEM How does the endocrine orchestra work? 1- Nervous Stimuli to the Hypothalamus  production of releasing (stimulatory) or inhibitory hormones, transported via a portal system of vessels to the anterior pituitary gland 2- Anterior Pituitary Gland  pituitary trophic hormones 3- Pituitary trophic hormones stimulate Peripheral Endocrine Glands  production of peripheral hormones 4- Hormone/Receptor Interactions in target organs  hormone actions 5- Peripheral hormones exert Negative Feedback Mechanisms  supression of hypothalamic & pituitary hormones.
 
        
                    
             
        
        
        
Answer:
Destrucción de hábitats naturales, tanto terrestres como marinos y otros acuáticos. Destrucción de ecosistemas de todo tipo. Extinción de especies animales y vegetales. Interrupción de las redes y relaciones tróficas.
Explanation: