Soalan Ekosistem Sains Tingkatan 2 [extra Quality] Page

(a) Nyatakan dua proses biologi yang terlibat dalam mengekalkan kandungan oksigen dan karbon dioksida di dalam atmosfera. _____________________ _____________________

A. Kerana tumbuhan menghasilkan oksigen untuk haiwan bernafas.B. Kerana tumbuhan boleh membuat makanan sendiri melalui fotosintesis.C. Kerana tumbuhan membekalkan tempat tinggal kepada haiwan.D. Kerana tumbuhan menyerap air dari dalam tanah. Bahagian B: Soalan Struktur

– Fungsi utama pengurai (seperti bakteria dan kulat) adalah mengitar semula nutrien ke dalam tanah. soalan ekosistem sains tingkatan 2

Padi → Tikus → Ular ↓ Belalang → Katak → Helang

(b) Which component is the main producer? (c) Name the process by which water is returned to the atmosphere from the pond's surface. (This is a part of the nutrient cycle). (a) Nyatakan dua proses biologi yang terlibat dalam

Adakah anda memerlukan soalan jenis yang lebih mencabar?

Karnivor besar yang memakan pengguna sekunder. Bahagian B: Soalan Struktur – Fungsi utama pengurai

Satu untung, satu lagi rugi (Contoh: Kutu dan manusia). B. Mangsa-Pemangsa

Sektor pertanian sering menghadapi masalah serangan perosak seperti tikus di ladang kelapa sawit. Petani mempunyai dua pilihan: menggunakan racun tikus (kimia) atau membela burung hantu (kawalan biologi).

A. To produce food through photosynthesis. B. To consume plants and animals. C. To break down dead organisms and waste. D. To compete with other organisms for resources.

| No. | Answer | | :--- | :--- | | (1) | - An individual is a single living organism, like one tree or one bird. | | (2) | C - The sun is the main source of energy that plants use to make food. | | (3) | C - A group of the same species (zebras) in a specific area at the same time is a population. | | (4) | C - Rice fields are man-made, unlike oceans, ponds, or deserts which are natural. | | (5) | B - Sunlight is a non-living component; the others are living organisms. | | (6) | B - About 90% of energy is lost as heat, so only 10% moves up the food chain. | | (7) | C - Decomposers break down dead matter, recycling nutrients back into the soil. | | (8) | C - This is parasitism, where the tick benefits and the dog is harmed. | | (9) | C - Foxes depend on rabbits for food, so without rabbits, the fox population would likely decrease. | | (10) | B - A food web is a more realistic representation of feeding connections, showing how food chains overlap. |