Answer:
30 percent 
Explanation:
Protein is essential in living organisms. They are the building blocks of life and help in the replacement and repair of work out tissues of the body. There are various sources of protein which are plant sources and animal sources.
Animal sources include land and aquatic animals.Sea Finfish, ocean catches, and fish-farming provide approximately 30
percent of animal protein sources consumed by humans in the world.
 
        
             
        
        
        
Cardiac Muscle, reason its called Cardiac attack when you have that sort of " Heart Attack "
        
                    
             
        
        
        
Answer:
A. MEMBRANA PLASMATICA
B. NUCLEO
C. RETICULO ENDOPLASMATCO
D. APARATO DE GOLGI
E. LISOSOMA
F. MICROFILAMENTO
G. MITOCONDRIA
H. RIBOSOMA
I. CENTROSOMA
 
        
             
        
        
        
the answer is A
this is because in ecosystem 1 there are only predators and no other species are observed. therefore predators have less food to eat thus they will die of hunger or move to another ecosystem