関連ワード:  what is the function of plant root system    what is the main function of plant root systems    what is one of the primary function of plants root system    what is the role of root system in plant    what is the role of the root system in plant reproduction    function of plant root system and give short explanation    what is the main function of the root system    what is the function of roots in plant  
結果 : what is the function of plant root system