A. the cell is the smallest working unit of living things
        
             
        
        
        
Taxonomy
The Radio-ulna and digits of most primates and animals represents a homologous structure
An example of another internal structure is the genes.
The homologous chromosomes have the same genes in common. Each cell has at least two sets of chromosomes which one comes from one’s father also called as paternal chromosome and mother, called as the maternal chromosomes. These chromosomes are what makes the child obtain the characters and may depend on the traits the parents possess. Homologous chromosomes are not duplicated chromosomes or identical however, they are analogous or similar. The alleles for a specific characteristics isn’t the same but the same genes are in the same order.<span> </span>
        
             
        
        
        
Answer: Most likely 1 or 4
Explanation:
 
        
                    
             
        
        
        
Explanation:
in the circumstances in which the attempts do not contravene the ethical and judicial laws.
 
        
             
        
        
        
Answer:
2nd answer
Explanation:
potential energy is stored energy