1. Semua oragnisma memerlukan tenaga untuk terus hidup. Tenaga ini diperoleh daripada makanan. All organisms need energy to continue living. This energy is obtainaed from foods.

a) Bina satu jaringan makanan berdasarkan rantai-rantai makanan pada Rajah 1. Construct a food web based on the following food chains in Diagram 1.

Rajah 1/ Diagram 1

i. Siratan Makanan. Food Web

(3 markah/3 marks)

ii. Lukis dan label nombor piramid yang melibatkan empat trof. Draw and label a pyramid of numbers involving four trophic levels.

(3 markah/3 marks)

b) Simbiosis berlaku apabila dua atau lebih organisma yang berlainan spesies hidup

bersama-sama dan berinteraksi dengan erat antara satu sama lain.

Symbiosis occurs when two or more different species organisms and interact closely

each other.

Rajah 2/ Diagram 2

Berdasarkan Rajah 2 di atas, terangkan interaksi simbiosis antara bunga

Reafflesia sp. dengan perumahnya.

Based on the Diagram 2, explain the biotic interaction of the Rafflesia sp. flower

with their hosp plant.

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(4 markah/4 marks)

2. Penyejatan air ialah proses perubahan air kepada wap air yang berlaku di

permukaan air pada sebarang suhu di bawah takat didih air.proses ini berlaku

sepanjang masa pada sebarang suhu.

Water evaporation is a changing process of water vapour that happens on the

water surface at any temperature below water boiling points. This process happens

all the time at any temperature.

Rajah 3 dibawah menunjukkan tiga kertas turas A,B Dan C. Semua kertas turas

itu adalah lembap dan diletakkan dibawah cahaya matahari selama dua jam.

Diagram 3 below shows three filter paper A,B and C. All the filter paper are wet and

placed under sunlight for two hours.

Rajah 3/ Diagram 3

a) (i) Kertas turas yang manakah akan kering dahulu?

Which filter paper will dry first?

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(1 markah/1mark)

(ii) Berikan satu sebab bagi jawapan anda di 13 a) (i).

Give one reason your answer in 13 a) (i).

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(1 markah/1mark)

b) Alisya memakai baju yang basah. Dia mengeringkan bajunya dengan berdiri di

hadapan kipas meja yang berputar. Terangkan bagaimana keadaan itu boleh

membantu Alisya.

Alisya wears a wet shirt. She stands in front of a moving table fan to dry the shirt.

Explain how the situation can help to dry her shirt.

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(2 markah/2 marks)

c) Rajah 4 di bawah menunjukkan satu proses penjemuran ikan dibawah cahaya

matahari.

Diagram 4 shows a drying fish process under the sunlight.

Rajah 4 / Diagram 4

Terangkan satu kaedah bagaimana ikan tersebut dapat dikering dengan lebih

cepat.

Explain one method to make the fish dry faster.

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(2 markah/2 marks)

d) Bagaimanakah konsep penyejatan dapat diaplikasikan dalam situasi di bawah?

How can the concept of evaporation is applied in the situations below?

i. Mengeringkan rambut. / Drying hair

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(2 markah/2 marks)

ii. Perpeluhan. / Sweating.

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(2 markah/2 marks)

3. Rajah 5 dibawah menunjukkan organisma hidup.

Diagram 5 shows living orgnanisms.

Rajah 5 / Diagram 5

a) Kelaskan pembiakan asexual organisma-organisma ini.

Classify the asexual reproduction of these organisms

(5 markah/5 marks)

b) Seorang penanam mangga berhasrat untuk memperbanyakkan tanamannya

dalam masa yang singkat dan cepat matang. Berdasarkan pengkelasan di a) jenis

pembiakan manakah yang boleh diamalkan oleh beliau?. Wajarkan pilihan itu.

A mango growers intend to increase the plant in a short time and precocious. Based

on classification in a) Which type of breeding can be practiced by him ?. Justify that

choice.

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(2 markah/2 marks)

c) Nyatakan salah satu ciri anak-anak pokok yang akan diperolehi.

State one of the characteristic offsprings to be obtained.

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(1 markah/1 marks)

d) Adakah ciri yang dinyatakan di c) baik? Terangkan.

Is the characteristic stated in c) good? Explain.

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(1 markah/1 marks)

4. Air paip mengandungi bahan terlarut di dalamnya. Jumlah dan jenis bahan

terlarut bergantung pada tempat anda tinggal. Ini merupakan salah satu sebab

kenapa rasanya berbeza bagi kawasan yang berbeza. Anda boleh mengetahui

berapa banyak bahan terlarut di dalam air dengan cara menuangkannya sedikit

didalam gelas dan dibiarkan mengalami penyejatan. Kelihatan garis putih

ditinggalkan didalam gelas mengandungi mineral yang terkandung di dalam air.

Air yang mengandungi banyak bahan pelarut dipanggil ‘air kasar’ manakala air

yang mengandungi sedikit bahan pelarut dipanggil ‘air lembut’.

Tap water contains dissolved substances (solutes) in it. The amount and type of

dissolved substances depend on where you live. This is one of the reasons why tap

water tastes different in the areas. You can find out how much solute is dissolved in

water by pouring a small amount into a glass and allowing it to evaporate.th

ewhite ring or scale left behind in the glass contains minerals that were dissolved in

the water. Water that contains a lot of dissolved substances is called hard water,

while water that contains very few dissolved substances is called soft water.

a) Airyna mempunyai tangki ikan (akuarium). Air di dalam tangka akan tersejat, dia

terpaksa menambahkan lebih air. Dia memberitahu bahawa terdapat garis putih

disekeliling tangka ikan setelah airnya tersejat. Terangkan pemerhatian yang

dilakukan oleh Airyna.

Airyna had a fish tank (aquarium). As the water evaporated, she would add more

water. She noticed a line of white scale on the inside of the fish tank where the

water evaporated. Explain Airyna’s observation.

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(3 markah/3 marks)

b) Gambarajah di bawah menunjukkan kitaran air.

The diagram below shows the water cycle.

i. Namakan dua sumber semulajadi air.

Name two natural sources of water.

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(2 markah/2 marks)

ii. Air hujan merupakan air yang paling tulen dikalangan semua sumber air

semulajadi. Namun, air hujan mengandungi gas terlarut, mikroorganisma

dan habuk.

Berdasarkan pernyataan dia atas, nyatakan dua proses penulenan air

supaya air selamat untuk digunakan.

Rain water is the purest form of water among all natural sources. Yet it

usually contains dissolved gases, microorganisms and dust.

Based on the statement, state two processes of purification of water so that

water is safe to use.

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(2 markah/2 marks)

c) Sumber air minuman yang baik merupakan sesuatu yang penting. Air yang

terdapat di bawah tanah dikenali sebagai air bumi. Berikan sebab mengapa air

bawah tanah kurang pencemaran ole bakteria dan zarah berbanding dengan air

dari sumber sungai dan laut.

It is important to have good drinking water. Water found underground is reffered

to as ground water. Give reasons why there is less pollution by bacteria and

particles in ground than in water from suface sources such as river and sea.

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(2 markah/2 marks)

d) Air tulen boleh diperolehi melalui penyulingan. Nyatakan satu kegunaan air

suling.

Pure water can be obtained by distillation. State one uses of distilled water.

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(1 markah/1 mark)

5. (a) Rajah 12.1 menunjukkan dua invertebrate, cacing dan ketam.

Diagram 12.1 shows two invertebrate, worm and crab.

a) Apakah jenis sokongan yang dimiliki oleh kedua-dua haiwan tersebut?

What kind of support that is owned by the two animals?

i. Cacing /worm:____________________________________________________________________

ii. Ketam/Crab: ____________________________________________________________________

(2 markah/2 marks)

b) Bagi cacing tanah, selain memberi bentuk dan sokongan, apakah fungsi lain bagi

sistem sokongan pada cacing.

For the earthworm, in addition to giving shape and support, what is another

function of the support system in the worm?

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(2 markah/2 marks)

c) Namakan dua haiwan yang sama sistem sokongannya dengan cacing.

Name two animals which have the same support system with worm.

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(2 markah/2 marks)

d) Namakan dua invertebrate yang mempunyai system sokongan yang sama

dengan ketam.

Name two invertebrates which have the same support system with crab.

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(2 markah/2 marks)

e) Ketam dan beberapa haiwan lain bersalin kulit beberapa kali. Apakah tujuannya

ia berbuat demikian?

Crab and some other animals molt several times. What is the purpose doing that?

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(2 markah/2 marks)

f) Rajah 12.2 menunjukkan seekor ikan paus terdampar dipersisiran pantai.

Diagram 12.2 shows a whale beached coastline.

Rajah 12.2/diagram 12.2

i. Berdasarkan pengetahuan anda tentang system sokongan ikan paus,

bolehkah ikan paus itu kembali ke lautan dengan sendirinya?

Based on your knowledge of whale support system, can the whale back into

the ocean by itself?

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(1 markah/1 marks)

ii. Terangkan jawapan anda dalam 12 (f) (i).

Explain your answer in 12 (f) (i).

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(2 markah/2 marks)