Meziwanye nkwụsi ike nke ịnya ụgbọ ala, kwalite nkasi obi ịnya ụgbọ ala, ma nwee ọ enjoyụ ịnya ụgbọ ala; Ọ nwere ike belata vibration nke ahụ ruo oke ma banye mkpọtụ nke usoro nkwusioru;Dozie nsogbu nke mmiri na-adịghị ike ma mụbaa ahụ site na 0.2-0.3 cm, mana ọ nweghị ike imeziwanye ikike ibu;Nchekwa dị oke na ịnara nrụgide ozugbo nke okporo ụzọ siri ike na-akpata iji zere mmebi nke sistemu ihe na-akpata ujo (Ịdọ aka ná ntị: Ịfefe oke ga-emebi sistemu ihe na-akpata ujo).