Answer:
brown hair and physical trait
 
        
             
        
        
        
<span>heterozygous / homozygous refers to whether both alleles for a gene are the same. The organism is homozygous if both alleles are the same - that is, either both are dominant or both are recessive. The organism is heterozygous if the alleles are different - that is, if one allele is dominant and the other allele is recessive..
 the answer to the questions is A. </span><span>One parent was heterozygous for eye color and the other was homozygous with red eyes.</span>
        
                    
             
        
        
        
Http://www.innerbody.com/image/musc01.html
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Active transport uses energy but diffusion and facilitated diffusion doesn’t that why they differ from each other 
hopefully that helps :)