Kegiatan 1. Mengamati
komponen-komponen ekosistem
Tujuan : Mengamati komponen-komponen
ekosistem kebun/kolam.
Cara kerja :
1. Pergilah ke kebun atau
kolam yang ada di sekitar sekolahmu.
2. Tentukanlah ekosistem
yang ingin kamu amati.
3. Amatilah
komponen-komponen ekosistem yang ada, kemudian catatlah.
4. Catat hasil
pengamatanmu pada tabel pengamatan.
Tabel. 1.1 Hasil pengamatan komponen
penyusun ekosistem
|
No.
|
Komponen Biotik
|
Komponen Abiotik
|
Keterangan
|
|
1.
|
|||
|
2.
|
|||
|
3.
|
|||
|
4.
|
|||
|
5.
|
|||
|
6.
|
|||
|
7.
|
|||
|
8.
|
|||
|
9.
|
|||
|
10.
|
Pertanyaan :
1. Jelaskanlah interaksi
yang terjadi antar komponen biotik...................
.............................................................................................................
.....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
2. Jelaskanlah interaksi
yang terjadi antar komponen biotik dengan abiotik.
.....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
3. Apakah yang terjadi
pada setiap komponen yang diamati? Mengapa demikian?
....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Kegiatan 2. Latihan Soal
1. Apa yang di maksud
dengan interaksi dalam ekosistem?...................
....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
2. Sebutkan dan jelaskan
interaksi yang terjadi antar populasi dalam
ekosistem...............................................................................................
.............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
3. Mengapa makhluk hidup
membutuhkan kondisi lingkungan yang berbeda-beda untuk bisa bertahan
hidup........................................................
............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
4. Jelaskanlah perbedaan
antara kompetisi nintraspesifik dan kompetisi Interspesifik berikan
contohnya..........................................................
............................................................................................................
.....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
5. Jelaskan proses
terjadinya eutrofikasi................................................
.....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Kegiatan 3. Latihan Soal
Jawablah pertanyaan dibawah ini!
1. Jelaskan yang dimaksud
dengan bioma....................................................
.........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
2. Tuliskan ciri-ciri
hutan hujan tropis...........................................................
.........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
3. Tuliskan jenis-jenis
flora dan fauna di daerah gurun.............................
.........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
4. Tuliskan daerah
penyebaran bioma taiga................................................
.........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
5. Apa yang dimaksud
dengan...
a. Xerofit..................................................................................................................................................................................................................................................................................................................................................
b. Hibernasi.............................................................................................................................................................................................................................................................................................................................................
6. Jelaskan perbedaan
dari Bioma tundra artik dan tundra alpine..............
......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Kegiatan 4. Latihan Soal
Jawablah pertanyaan dibawah ini!
1. Jelaskan struktur
danau dibagi secara horizontal......................................
................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
2. Lahan basah dibagi
menjadi 3 jelaskan!...................................................
...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
3. Jelaskan perbedaan
sungai bagian hulu, tengah dan hilir......................
...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
4. Jelaskan pembagian
zona laut berdasarkan ada atau tidaknya penetrasi cahaya
matahari.....................................................................................................
...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
5. Tuliskan 3 macam
ekosistem laut..............................................................
...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
6. Apa yang dimaksud
dengan ekosistem buatan berikan contohnya........
................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Kegiatan 5. Latihan Soal
Jawablah pertanyaan dibawah ini!
1. Apa yang dimaksud
dengan Aliran energi?
............................................................................................................................................................................................................................................................................................................................................................................
2. Tuliskan macam-macam
tingkat trofik dalam suatu ekosistem.
.....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
3. Jelaskan perbedaan
antara rantai makanan dan jaring-jaring makanan.
.................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Kegiatan 6. Latihan Soal
Jawablah pertanyaan dibawah ini!
1. Tuliskan macam-macam
piramida ekologi.
........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
2. Apa yang dimaksud
dengan piramida Bimassa?
........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
3. Mengapa piramida
energi memiliki keakuratan lebih tinggi dibandingkan dengan jenis piramida
lainnya?
........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
..............................................................................................................................................................................................................................................
4. Apa yang dimaksud
dengan produktivitas ekosistem?
........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
5. Tuliskan rumus produktivitas
primer bersih.
........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
............................................................................................................................................................................................................................................................................................................................................................................
6. Apa yang dimaksud
produktivitas sekunder?
........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Kegiatan 7. Latihan Soal
Jawablah pertanyaan dibawah ini!
1. Apa yang dimaksud
dengan daur Biogeokimia?
............................................................................................................................................................................................................................................................................................................................................................................
2. Tuliskan proses-proses
yang terjadi pada daur air.
...........................................................................................................................................................................................................................................................................................................................................................................
3. Apa yang dimaksud
dengan daur karbon?
............................................................................................................................................................................................................................................................................................................................................................................
4. Tuliskan proses
terjadinya fotosintesis.
............................................................................................................................................................................................................................................................................................................................................................................
..................................................................................................................
5. Tuliskan fungsi
senyawa berikut ini bagi organisme.
a. Oksigen
b. Fosfor
............................................................................................................................................................................................................................................................................................................................................................................
............................................................................................................................................................................................................................................................................................................................................................................
Kegiatan 8. Latihan Soal
Jawablah pertanyaan dibawah ini!
1. Tuliskan
peristiwa/proses penting dalam daur nitrogen.
.........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
2. Jelaskan apa yang
dimaksud dengan fiksasi nitrogen dan jenis organisme yang berperan didalamnya.
.........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
...................................................................................................................
3. Jelaskan proses
terjadinya nitrifikasi.
.........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
.........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
4. Bagaimana cara suatu
organisme mendapatkan sulfur?
.........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
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