It Sci Y5 Topical Test 3

TOPICAL TEST 3 : FOOD CHAIN AND FOOD WEB Section A

This question paper consists of 25 questions. Answer all questions. Every question is followed by four options A, B, C  and D. Choose the correct answer. 1 Which of the following is not matched correctly? Animal

Food

Horse

Fruits

B

Lizard

Insects

C

Grasshopper

Leaves

D

Chicken

Worms

Diagram 4

Which of the following animals can replace snake in the food chain? A Lion C Hen B Eagle D Cow 8 Diagram 5 shows the animal classes.

2 Diagram 1 shows a food chain.

Animal

J→K→L→M Diagram 1

Herbivore S

Which of the following species has the largest population? A J C L B K D M

Omnivore T Diagram 5

Carnivore U

Which of the following represents S, T and U? S

T

U

A

Eagle

Rabbit

Elephant

B

Squirrel

Chicken

Bear

C

Leopard

Monkey

Shark

D

Hen

Frog

Snail

3 Diagram 2 shows a food chain. Leaves → Worm → Chick → Eagle Diagram 2

Which of the following is producer? A Leaves B Eagles C Chicks D Worms

9 Diagram 6 shows three species.

4 Which of the following can be a producer in a food chain? I Algae III Grass II Worm IV Grasshopper A I and II C II and IV B I and III D III and IV

P

Q

R

Diagram 6

Which of the following food chains is correct? A P → Q→ R C Q→R→P B R→P→Q D P →R →Q

5 An oil palm estate owner wants to breed a type of animal, X, in his estates to kill mice (pests). What is animal X? A Snake C Dog B Cat D Owl

10 The following statements describe an animal. • It eats plants only. • It has four legs.

6 Diagram 3 shows a food chain.

The animal described is a A butterfly. C bear. B pigeon. D sheep.

P→Q→R→S Diagram 3

Which of the following statements are correct? I Q is a herbivore. II S is a producer. III R is eaten by Q. IV S eats R. A I and II C II and III B I and IV D III and IV 7 Diagram 4 shows a food chain. Paddy → Rat → Snake 10

11 Animal S lives in a forest. It has a long sticky tongue which is folded backwards and forked at tip. It eats insects. What is animal S most likely be? A Frog C Sparrow B Rabbit D Elephant 12 The information below describes a species. There are some species of animals which eat only one type of food. The population of these animals will be greatly affected when there is a shortage of their food.

Which of the following food chain is correct? A Algae → small fish → larva → big fish → flamingo B Algae → larva → small fish → big fish → flamingo C Algae → larva → big fish→ small fish→ flamingo D Flamingo → algae → larva → big fish → small fish

Which of the following animals belongs to the group mentioned above? A C

B

D

17 Diagram 10 shows a food web in a habitat. 13 Diagram 7 shows a food chain. Fruit → J → K → Eagle Diagram 7

Which of the following could be organisms J and K? J

K

Bat

Snake

B

Squirrel

Frog

C

Butterfly

Snake

D

Rabbit

Frog

A

Diagram 10

What would happen if all the lions die? A The number of grass increases. B The number of snakes decreases. C The number of rabbits decreases. D The number of deer increases.

14 Diagram 8 shows a food chain that can be found in a forest.

18 Diagram 11 shows a food web in a habitat.

Diagram 8

Which of the following is P? A Deer B Frog C Squirrel D Praying mantis

Diagram 11

Which of the following organisms is a producer? A P C R B Q D S

15 Diagram 9 shows an animal, Z.

19 Diagram 12 shows a food web. Diagram 9

Which of the following shows the correct position of animal Z on a food chain? A Paddy → snake→ Z → eagle

Diagram 12

Which of the following are carnivores in the food web? A P and U C Q and R B P and Q D R and T

B Paddy → Z → snake → eagle C Snake → eagle → Z → paddy D Z → snake → eagle → paddy 16 The following information shows the relationship between four types of living things that forms a food chain. • • • •

20 Diagram 13 shows a food web.

Algae is eaten by larva. Small fish eats larva. Big fish eats small fish. Flamingo eats big fish.

Butterly

Y

Bee

Snake

Sunflower plant

11

23 Diagram 15 shows a food web.

Diagram 13 Diagram 15

Which of the following could be Y? A

B

How many food chains can be formed in this food web? A 3 C 5 B 4 D 6

C

24 Diagram 16 shows a food web.

D

21 Diagram 14 shows a food web.

Diagram 16

Diagram 14

What will happen if the population of M decreases? A The number of J will increase. B The number of K will decrease. C The number of L will decrease. D The number of N will decrease.

Which of the following food chains represent the food web? I J→K→L→M→N II J → K → M → N III L→ K → M→ N III J → L → K → M A I and II C II and IV B II and III D III and IV

25 Diagram 17 shows a food web.

22 What are the importance of food web? I To maintain the balance of ecosystem II To ensure the survival of the species III To increase the population of the producers IV To decrease the number of carnivores A I and II B II and III C II and IV D III and IV

Diagram 17

Which of the following statements is true? A T, U and V are herbivores. B V, W and X are carnivores. C The number of species W decreases if the number of species T increases. D The number of species X increases when the number of species V decreases.

Section B Answer all the questions. Write your answers in the spaces provided. 1 Diagram 1 shows a few types of animals.

Diagram 1

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(a) Complete the classification of the animals in Diagram 1 according to the food they eat.

Cow

3 Diagram 2 shows a food web in a paddy field.

Chicken

Diagram 2

[3 marks]

(a) Based on the food web above, construct four food chains.

(b) State one reason (inference) about P, Q and R. P : _____________________________________

1. ______________________________________

Q : _____________________________________ R : _____________________________________ [3 marks]

2. ______________________________________ 3. ______________________________________

2 Mariani carried out an investigation to find out the relationship between sources of the food and the number of consumers. The investigation involved the populations of snakes and eagles in an oil palm plantation for four weeks. Table 1 shows the observation recorded in the four weeks. Week

Number of snakes

Number of eagles

1  2

61

27

45

35

3

31

43

4

19

50

4. ______________________________________ [4 marks] (b) Name one of the carnivores in this food web. ________________________________________ [1 mark] (c) What is the difference between the food web and the food chain? ________________________________________ ________________________________________ [1 mark]

Table 1

(d) Why is the food web important?

(a) Based on Table 1, what can be observed about the population of snake throughout the 4 weeks? ________________________________________ [1 mark] (b) State one reason (inference) that can be made from the observation in (a). ________________________________________ [1 mark] (c) Predict the number of snakes in the 5th week. ________________________________________ [1 mark] (d) Predict what will happen if the population of snakes reduces until zero. ________________________________________ [1 mark]

________________________________________ ________________________________________ [1 mark] (e) Which living thing do you expect to have the least in number? ________________________________________ [1 mark] (f) Which living thing is a producer? ________________________________________ [1 mark]

(e) Suggest one reason (inference) that can cause the population of snakes to decrease in the habitat. ________________________________________ [1 mark] 13

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