Answer:
Krill
Explanation:
All animals in the Antarctic depend on krill, very small crustaceans, for their survival.
 
        
             
        
        
        
A Hydrogen has a negative charge of -1 and o is positive and also neutral
        
             
        
        
        
The progeny has one set of genes from its mother and another set from its father.
        
             
        
        
        
Answer:
The oceans are present on the 70 percent of the world but only 5 percent of the total oceans are explored yet.
There are many reasons of this problem but the most important is the hydrostatic pressure.
Hydrostatic pressure can be described as the pressure or weight exerted by the water on the object.
With every increase in 10 meters the pressure increase by 6.47kg (14.27lbs) each square inch of surface. 
Due to extreme pressure, oxygen level in the cells of body fluctuates and person becomes unstable and can become unconscious.