LKPD Fragmentasi Cacing [PDF]

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LEMBAR KERJA PESERTA DIDIK FRAGMENTASI PADA CACING TANAH



IX ..../....



A. TUJUAN Mengamati fragmentasi pada cacing tanah B. ALAT DAN BAHAN 1. Kotak kayu atau baki plastik yang berwarna gelap 3 buah (Gelas plastik Pop Ice dibungkus kantong plastik hitam bagian luarnya dengan cara dilem) 2. Tanah dan kompos 3. Seekor cacing tanah BESAR 4. Pisau tajam C. CARA KERJA 1. Ambil tiga kotak kayu. Isi setiap kotak dengan tanah yang telah dicampur kompos. 2. Ambil seekor cacing tanah yang berukuran besar, potong tubuhnya menjadi tiga bagian kepala, badan (tengah), dan ekor. 3. Letakkan masing-masing potongan cacing tanah ke dalam kotak dan timbunlah dengan tanah 4. Biarkan percobaan tersebut berlangsung selama 3 minggu dan amati setiap dua hari sekali. 5. Catat hasil pengamatan ke dalam tabel berikut! D. TABEL PENGAMATAN No



Dua hari Pertama



1 ..................... Kedua 2 .................... Ketiga 3 .................... Keempat 4 .................... Kelima 5 ..................... Keenam 6 ..................... Ketujuh 7 ..................... Kedelapan 8 ..................... Kesembilan 9 ..................... Kesepuluh 10 .....................



Kepala



Perubahan pada bekas potongan di bagian Badan (tengah)



Ekor



E. PERTANYAAN 1. Setelah 3 minggu percobaan berakhir, bagaimana keadaan masing-masing dari ketiga potongan bagian tubuh cacing tanah? .................................................................................................................................................................... .................................................................................................................................................................... .................................................................................................................................................................... .................................................................................................................................................................... .................................................................................................................................................................... .................................................................................................................................................................... 2. Potongan tubuh bagian manakah yang melakukan regenerasi? .................................................................................................................................................................... .................................................................................................................................................................... .................................................................................................................................................................... .................................................................................................................................................................... .................................................................................................................................................................... .................................................................................................................................................................... 3. Dalam waktu berapa harikah potongan tubuh cacing tanah tersebut menunjukkan adanya regenerasi? Bandingkan dengan hasil kelompok yang lain! .................................................................................................................................................................... .................................................................................................................................................................... .................................................................................................................................................................... .................................................................................................................................................................... .................................................................................................................................................................... .................................................................................................................................................................... .................................................................................................................................................................... 4. Disebut apakah cara perkembangbiakan yang dilakukan oleh cacing tanah dalam percobaanmu? .................................................................................................................................................................. .................................................................................................................................................................. 5. Simpulan apakah yang dapat kamu peroleh dari percobaan tersebut? .................................................................................................................................................................. .................................................................................................................................................................. .................................................................................................................................................................. .................................................................................................................................................................. .................................................................................................................................................................. .................................................................................................................................................................. .................................................................................................................................................................. .................................................................................................................................................................. .................................................................................................................................................................. .................................................................................................................................................................. .................................................................................................................................................................. Nama Anggota: 1................................................ 5. ................................................ 2................................................ 6. ................................................ 3................................................ 7. ................................................ 4................................................



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