Darwin namak wagyanik ne vikas ke samband me aapna ek sidhant diya jise prakirtiwaran wad kehte hai. Darwan ne prakirti waranwad :- 1. Aatijan:- koi bhi jiv jo aapni santatiyo ka nirman karta hai. 2.astitwa ke liye sangarsh a) aantah jatiye sangarsh b) aantra jatiye sangharsh c) wayumandaliye sangarsh 3. Wibinnta 4. Prakirti ke dwara chayan 5.naye santatiyo ka nirman. THANK YOU MA'AM ❤❤❤❤❤❤.