🎯 What You'll LearnApa Yang Anda Akan Pelajari
Explain the importance of biodiversity and its levelsMenerangkan kepentingan biodiversiti dan peringkatnya
Describe classification systems and taxonomyMenerangkan sistem pengelasan dan taksonomi
Apply rules of binomial nomenclatureMenggunakan aturan penamaan dedua
Compare characteristics of the five kingdomsMembanding ciri lima alam
Evaluate conservation methods — in situ vs ex situMenilai kaedah pemuliharaan — in situ vs ex situ
🔥 BiodiversityKepelbagaian Biologi
Levels of BiodiversityPeringkat Kepelbagaian Biologi
| LevelPeringkat | DescriptionKeterangan | ExampleContoh |
|---|---|---|
| Genetic Diversity (Kepelbagaian Genetik)Kepelbagaian Genetik | Variation of genes within a speciesVariasi gen dalam satu spesies | Different varieties of paddy (MR219, MR220)Pelbagai varieti padi (MR219, MR220) |
| Species Diversity (Kepelbagaian Spesies)Kepelbagaian Spesies | Number and abundance of different speciesBilangan dan kelimpahan spesies berbeza | Malayan tiger, orangutan, proboscis monkey in BorneoHarimau Malaya, orang utan, monyet belanda di Borneo |
| Ecosystem Diversity (Kepelbagaian Ekosistem)Kepelbagaian Ekosistem | Variety of habitats and ecological communitiesPelbagai habitat dan komuniti ekologi | Rainforest, mangrove, coral reef, freshwaterHutan hujan tropika, bakau, terumbu karang, air tawar |
🔬 ClassificationPengelasan
Taxonomy is the science of classifying living organisms into groups based on shared characteristics.Taksonomi ialah sains mengklasifikasikan organisma hidup ke dalam kumpulan berdasarkan ciri sepunya.
Taxonomic Hierarchy (from broad to specific)Hierarki Taksonomi (dari umum ke khusus)
Kingdom → Phylum → Class → Order → Family → Genus → SpeciesAlam → Filum → Kelas → Order → Famili → Genus → Spesies
Kingdom = Phillip Came Over For Good SoupAlam = Phillip Came Over For Good Soup
Five Kingdom SystemSistem Lima Alam
| KingdomAlam | Cell TypeJenis Sel | OrganisationOrganisasi | NutritionPemakanan | ExamplesContoh |
|---|---|---|---|---|
| Prokaryotae (Monera)Monera | ProkaryoticProkariot | UnicellularUnisel | Autotrophic / HeterotrophicAutotrof / Heterotrof | Bacteria, CyanobacteriaBakteria, Sianobakteria |
| ProtistaProtista | EukaryoticEukariot | UnicellularUnisel | Autotrophic / HeterotrophicAutotrof / Heterotrof | Amoeba, Paramecium, EuglenaAmoeba, Paramecium, Euglena |
| FungiFungi | EukaryoticEukariot | Uni- / MulticellularUnisel / Multisel | Heterotrophic (saprophytic)Heterotrof (saprotrof) | Mushroom, yeast, mouldCendawan, yis, kulapuk |
| PlantaePlantae | EukaryoticEukariot | MulticellularMultisel | Autotrophic (photosynthesis)Autotrof (fotosintesis) | Fern, durian treePakis, pokok durian |
| AnimaliaAnimalia | EukaryoticEukariot | MulticellularMultisel | HeterotrophicHeterotrof | Tiger, frog, humanHarimau, katak, manusia |
Binomial NomenclaturePenamaan Dedua
1. Two names: Genus (capitalized) + species (lowercase)Dua nama: Genus (huruf besar) + spesies (huruf kecil)
2. Written in italics (printed) or underlined (handwritten)Ditulis dalam huruf condong (cetakan) atau digaris (tulisan tangan)
3. Genus can be abbreviated after first use: H. sapiensGenus boleh disingkatkan selepas penggunaan pertama: H. sapiens
4. Examples: Homo sapiens (human), Panthera tigris jacksoni (Malayan tiger subsp.)Contoh: Homo sapiens (manusia), Panthera tigris jacksoni (subspesies harimau Malaya)
5. Language: Latin or Latinized — universal for all scientistsBahasa: Latin atau dilatinkan — universal untuk semua saintis
Example: The Malayan tiger is Panthera tigris jacksoni — named in honour of Peter Jackson, the tiger conservation expert.Contoh: Harimau Malaya ialah Panthera tigris jacksoni — dinamakan sempena Peter Jackson, pakar pemuliharaan harimau.
🚨 Threats to BiodiversityAncaman Terhadap Kepelbagaian Biologi
| ThreatAncaman | CausesPunca | EffectsKesan |
|---|---|---|
| DeforestationPenyahhutanan | Logging, land clearing for agriculture (oil palm)Pembalakan, pembukaan tanah untuk pertanian (kelapa sawit) | Habitat loss, soil erosion, climate changeKehilangan habitat, hakisan tanah, perubahan iklim |
| PollutionPencemaran | Industrial waste, pesticides, plasticSisa industri, racun perosak, plastik | Water contamination, species deathPencemaran air, kematian spesies |
| Over-hunting/PoachingPemburuan Berlebihan/Pemburuan Haram | Illegal wildlife trade, trophy huntingPerdagangan hidupan liar haram, pemburuan trofi | Species extinction (e.g. rhinoceros)Kepupusan spesies (contoh: badak sumbu) |
| Invasive SpeciesSpesies Invasif | Introduced species without natural predatorsSpesies diperkenalkan tanpa pemangsa semula jadi | Outcompete native species (e.g. golden apple snail)Mengatasi spesies asli (contoh: keong mas) |
| Climate ChangePerubahan Iklim | Greenhouse gas emissionsPelepasan gas rumah hijau | Coral bleaching, altered migration patternsPemutihan karang, perubahan corak migrasi |
💯 Quick CheckSemakan Pantas
What is the correct binomial name for a human?Apakah nama dedua yang betul untuk manusia?
🌏 ConservationPemuliharaan
| MethodKaedah | DescriptionKeterangan | ExamplesContoh |
|---|---|---|
| In Situ (Pemuliharaan In Situ)In Situ (Pemuliharaan In Situ) | Conservation in natural habitatPemuliharaan dalam habitat semula jadi | National parks (Taman Negara), wildlife reserves, marine parksTaman negara (Taman Negara), rizab hidupan liar, taman marin |
| Ex Situ (Pemuliharaan Ex Situ)Ex Situ (Pemuliharaan Ex Situ) | Conservation outside natural habitatPemuliharaan di luar habitat semula jadi | Zoos (Zoo Negara), botanical gardens, seed banks, captive breedingZoo (Zoo Negara), taman botani, bank biji benih, pembiakan dalam kurungan |
🇲🇾 Malaysian Conservation EffortsUsaha Pemuliharaan Malaysia
🦔 Borneo rainforest — Over 130 million years old (older than the Amazon), home to 15,000 plant species and endangered species like orangutan and proboscis monkey.Hutan hujan Borneo — Lebih 130 juta tahun (lebih tua dari Amazon), tempat tinggal 15,000 spesies tumbuhan dan spesies terancam seperti orang utan dan monyet belanda.
🐅 Taman Negara — One of the oldest protected rainforests in the world, established in 1938. Home to the Malayan tiger.Taman Negara — Salah satu hutan hujan dilindungi tertua di dunia, ditubuhkan pada 1938. Tempat tinggal harimau Malaya.
🌣 Rafflesia — World's largest flower (Rafflesia arnoldii), found in Borneo. Protected in conservation areas.Rafflesia — Bunga terbesar di dunia (Rafflesia arnoldii), ditemui di Borneo. Dilindungi di kawasan pemuliharaan.
🌊 Coral Triangle — Sabah and Sarawak coral reefs are part of the world's most biodiverse marine ecosystem.Segi Tiga Karang — Terumbu karang Sabah dan Sarawak adalah sebahagian daripada ekosistem marin paling biodivers di dunia.
SPM 2021 Paper 2SPM 2021 Kertas 2
The Malayan tiger (Panthera tigris jacksoni) is classified as critically endangered in Malaysia. Fewer than 150 individuals remain in the wild.Harimau Malaya (Panthera tigris jacksoni) diklasifikasikan sebagai terancam kritikal di Malaysia. Kurang daripada 150 individu masih hidup di alam liar.
(a) State TWO threats to the survival of the Malayan tiger. [2 marks](a) Nyatakan DUA ancaman terhadap kelangsungan hidup harimau Malaya. [2 markah]
(b) Explain the difference between in situ and ex situ conservation, giving ONE example of each. [4 marks](b) Jelaskan perbezaan antara pemuliharaan in situ dan ex situ, beri SATU contoh bagi setiap satu. [4 markah]
(c) Why is biodiversity important for ecosystem stability? [2 marks](c) Mengapakah biodiversiti penting untuk kestabilan ekosistem? [2 markah]