Answer: wind, water, and gravity. 
Explanation:
 
        
                    
             
        
        
        
Answer:
This question is incomplete 
Explanation:
This question is incomplete because of the absence of options but the complete question is in the attached picture below.
The human genome is the basic genetic code, or blueprint, for the transfer of traits from parents to offspring through -hereditary transmission- . Studying this code -has revealed- ways to partially correct genetic defects after birth. It is already clear that behavior is rarely controlled by -a single gene- . Rather, almost all behavior involves -multiple genes- , and often specific -environmental- factors influence how genes are expressed.
It would be noted that some of the options were not chosen at all, this is because this question focuses on genes and it's expression. "Nurture and education" and "psychological" are not factors that actually affect gene expression. Also, studying genetic codes has already revealed partial ways to correct genetic defects and hence it would be wrong to choose "may in time reveal". For instance, there are procedures used to identify genetic defects in the spermatozoa of a male which can be screened out and the "good" sperm used to fertilize an egg in-vitro. 
 
        
             
        
        
        
The bootstrap is a program contained on the Rom that is automatically executed when the processor turns on. The Bootstrap Program scans the hard drive and starts the process of initializing the operating system. The version depends completely on the hardware you are using. An IBM chipset from 1988 will have a different Bootstrap program than an intel chipset from 2015. 
        
             
        
        
        
Answer:
A thick, dense fur, keeps the fox warm during winter, by preventing excessive loss of temperature and body heat when it is cold.