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Biologi Bab 2: Pergerakan dan Sokongan

Pembentangan Tentang Haiwan Berangka Hidrostatik: Cacing Tanah =)
by

Phoebe Knight

on 1 August 2017

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Transcript of Biologi Bab 2: Pergerakan dan Sokongan

Cacing Tanah
Pergerakan dan Sokongan
Cara saya bergerak
Apabila otot lingkar mengecut,otot membujur mengendur & segmen pada badan saya akan mengecil & memanjang sebaliknya jika otot membujur mengecut, otot lingkar akan mengendur & segmen pada baan saya akan menebal & memendek.
Untuk bergerak ke hadapan ,bahagian anterior badan akan memanjang.
Keta di bahagian badan akan mencengkam tanah.
Keta di bahagian badan di belakang(posterior) akan melepaskan cengkaman diikuti oleh pemendekan bahagian badan.
Pergerakan dihasilkan apabila pengecutan & pengenduran otot lingkar & otot membujur berlaku secara berselang-seli unuk menghasilkan suatu gelombang.
Disediakan oleh :
Ismah Firzanah Ishamshah
Radziatul Nabiela Rosman
Nur Azani Kamarudin
Phoebe Knight
Full transcript