Answer:
Option 3, of the abiotic factors found in their environment
Explanation:
The abiotic factors such as absence of sunlight and extremely cold temperature represents picture of an extreme habitat under an ice shelf in Antarctica.  
The optimum temperature requirements of bacteria for its survival ranges from 10oC to 20oC. In case,  if a bacteria lives in an environment where temperature is less than -5oC or higher than  50oC, then such habitats are considered to be “habitats with extremities”  as special physiological mechanisms are required to maintain the homeostasis and survive.
Likewise absence of sunlight further adds to the extremities of the habitat.
 Option 3, is correct
 
        
             
        
        
        
Percentage of human sperm cells carry an X chromosome is C 50%
        
             
        
        
        
Option - IT IS BASED ON PREDICTION 
because they have not had any way of telling where or when it has happened or occurred so you must predict how it happens or works.
hope this helps
        
                    
             
        
        
        
Answer:
b.
Explanation:
Plants are living things(biotic).
water and climate are non-living things (abiotic)
 
        
                    
             
        
        
        
Answer:
The correct answer will be option-A site.
Explanation:
The addition of the specific amino acids to the nascent peptide occurs after the binding of the amino acid to the tRNA via acylation of the amino acid through a process called t-RNA charging.
This charged tRNA binds to the A-site or Aminoacyl site of the ribosomes where the initiation stage of the translation begins. This amino acid is shifted to the P site or peptidyl site and exit from the E site of the ribosome.
Thus, option-A site is the correct answer.