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13 lessons,
1h 51m
Introduction (in Hindi)
1,003 plays

Introduction to the course.

Ameet Kumar SINGH
A Maths major and a UPSC CSE aspirant.

Unacademy user
aur character displacement waale video me v aapne kaha tha k.. to avoid or minimize competition finches overlapping characters ko diverge kr lete h tht ek hi jagah me reh k v food habit unka alag honeke wajah se khusi khusi wo reh paate h same area me....BUT speciation k video me bole ki allopatric k time pe due to physical or geographical barrier, ek large area few small areas me split honeke k wajah se finches k kuch populations wo small areas me distribute ho gye aur according to waha ka condition different characters ko pick kiya jo uss particular environment me proper survival k liye suitable ho.. ye dono statement to contradictory hua fir..1st 1 says same area me reh k character displacement k kaaran changes hua while 2nd says due to different habitats changes hua.. clear krna please.
Jyoti Kumari
4 months ago
hey, sabse phele aap natural selection ko consider kijiye. jisme different area mei shift hue finches. so you can relate natural selection and speciation very clearly. uske baad jo finches natural selection/ speciation ke karan alag area mei shift hua, unme apne mei bhi competetion tha, jise minimize kia character displacement ne. speciation and natural selection mei kisi or jagah pe shifting ho raha hai. or jo shift hue finches hai, unke bech ka competetion avoid krne k lye character displacement ho raha. hope ab clear ho gya hoga
Sunanda Nath
4 months ago
yes thanks, understood..
Jyoti Kumari
4 months ago
Welcome 😊
sir yee complete chapter h sets ke lie for jee mains
No, it is not the complete chapter but the concept is complete. You need to solve more questions after viewing this course.
Nikita sharma
a month ago
thank you sir
tx sir u teach very well😊