1: D
2: B
3: B
4: C
5: D
8: A
9: D
10: A
        
             
        
        
        
Answer:
carbon, hydrogen, nitrogen and oxygen 
Explanation:
mostly, combination of carboxylic and amine groups
 
        
             
        
        
        
Autographs are plants so they get their energy from the sun. Answer is B. Sun
        
             
        
        
        
Answer: A. Accumulate keratohyalin granules. B. Cells increase in size, some retain ability to divide. C. Cell membrane thickens. Cells imbedded in lipid matrix. D. Cells within this layer proliferate.
Explanation:
 
        
             
        
        
        
Answer:
Viruses use their own catabolic enzymes.
Explanation:
Viruses are the infective particles present in the environment which encloses their genetic material which could be wither RNA or DNA enclosed in the protein coat.
The protein coat is made of the capsomers which are arranged in the tubular structure forming capsid. The viruses do not contain the metabolic machinery of their own that is the reason that they do not have replication or transcription or translation machinery. For this they are dependent on the host organisms as they use their machinery.
Thus, the selected option is correct.