Topsoil is the most fertile soil layer for plants.
        
             
        
        
        
Neurological - by nerves
Endocrinological - by blood and secrets
        
             
        
        
        
 I<span>t is important for Mendel to study such a large sample of pea plants to determine the probability of inheritance because</span> higher sample size gives more accurate results.
>>>Mendel coined the terms “recessive” and “dominant<span>” in reference to certain traits.One best association to this is is his study about pea plants. According to him, green peas are recessive and yellow peas are dominant.</span>
        
             
        
        
        
1 batería cell is the answer .