Exercise Biodiversity

Science Module Form 2 - Chapter 3

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Classification of Animals

(Organisms with backbone) (Organisms without backbone)

Vertebrates

Warm- blooded

Cold- blooded

Characteristics Fish Amphibians Reptiles Birds Mammals

Habitats

(Land/ water)

Body covered by

(scales/ moist skins/

hard dry scales/

feathers/ fur/ hair)

Types of blood

(warm-blooded/ cold-

blooded)

Breath through

(gills/ lungs)

Fertilization

(internal/ external)

Types of reproduction

(lay eggs/ give birth)

Examples

Characteristics of Vertebrates

Invertebrates

Animal without jointed legs

Worm - like Not worm- like

Animals with jointed legs

Three pairs

of legs

Four pairs

of legs

More than four

pairs of legs

Characteristics Monocotyledons Dicotyledons

Examples of plants

Type of seed

(1 cotyledon/ 2 cotyledons)

Type of leaf

( parallel- vein/ network-

Type of root

(fibrous root / tap root)

Type of stem

(woody/ non-woody)

Classification of Plants

Flowering

Fungi Conifer

Live in water

Slimy scales

Cold-blooded

Breath through gills

External fertilization

Lay eggs

Amphibians

Live both in water and land

Moist skin

Cold-blooded

Breath through gills when young

Breath through skin and lungs at adult stage

External fertilization

Lay eggs

Reptilia

Live both in water and on land

Hard dry scales

Cold-blooded

Breath through lungs

Internal fertilization

Lay eggs

Live on land

Have feathers

Warm blooded

Lay eggs with shells

Mammals

Live on land

Body covered with hair

Warm-blooded

Give birth to young and produce milk for them.

Word Express

Cold –blooded Body temperature changes with surrounding temperature.

Warm –blooded Has a constant body temperature.

External fertilization Eggs are fertilized outside the females body.

Internal fertilization Eggs are fertilized inside the females body.

1. Fill in the blanks.

(a) Animals that have backbones are called ______________ and animals that do not have backbones are called _______________.

(b) The groups of animals living in water and breathe by means of gills is the ____________.

(c) The groups of animals living on land are ____________ and ____________.

(d) The groups of animals living in water and on land are ____________ and ____________.

(e) Amphibians, fish and reptiles are ___________________ animals. (f) Mammals and birds are ___________________ animals.

2. Choose the correct invertebrates from the list below to match the descriptions of the characteristics. (a) Have gills _____________________ (b) Spiny exoskeleton _____________________ (c ) 3 pairs of jointed legs _____________________ (d) Soft body protected by shell _____________________ (e) Jelly-like body with tentacles _____________________ (f) Four pairs of jointed legs _____________________ (g) Many legs _____________________

Exercise 3.1

Invertebrates Vertebrates

Animals

Fish Reptiles Mammals

Amphibians Birds

Starfish Jelly fish Cockle Scorpion Lobster Centipede Grasshopper

Characteristics Invertebrates

(a) What do all the above animals have in common? ___________________________________________________________

(b) Name the animal groups X and Y

(i) X : ____________________________________________________ (ii) Y : ____________________________________________________

(c) Define the terms:

(i) Cold-blooded animals : _____________________________________ (ii) Warm-blooded animals : ____________________________________

(d) Name the animal groups that lay eggs without shell?

___________________________________________________________

(e) Which animal group does not breathe through lungs? ___________________________________________________________

4. Give the characteristics of a dicotyledon plant. (a) Number of cotyledon _______________________ (b) Leaf vein pattern _______________________ (c )Type of root system _______________________ (d) Arrangement of flower parts _______________________

Vertebrates

Warm- blooded

Eagle X

Cold- blooded

Y Amphibians Reptiles

5. Write the names of these non-flowering plants in the correct group. 6. Draw a leaf of a

Monocotyledon Dicotyledon

Alga Moss Fern Conifer

7. The diagram shows the classification of animals.

(a) What are

(i) Vertebrates : __________________________________________ (ii) Invertebrates : __________________________________________

(b) Name the groups labeled as

(i) P : ____________________________________________________ (ii) Q : ____________________________________________________ (iii) R : ____________________________________________________

(c) Mammals are warm-blooded animals but fish are cold-blooded animals. Explain the meaning of

(i) warm-blooded : __________________________________________ (ii) cold-blooded : __________________________________________

8. Diagram 1 shows three animals.

Invertebrates Vertebrates

Animals

Fish Q Mammals

Diagram 1

(a) Name the class of these animals. ___________________________________________________________

(b) Give four characteristics of the group of animals.

(i) ________________________________________________________ (ii) ________________________________________________________ (iii) ________________________________________________________ (iv) ________________________________________________________

(c) These animals are warm-blooded. Name the other class of animals which

are also warm-blooded. ___________________________________________________________

9. Based on Diagram 2 below, answer the following questions.

Diagram 2

(a) Name the groups of :

(i) X : ____________________________________________________ (ii) Y : ____________________________________________________

(b) Define the following terms:

(i) Monocotyledons : __________________________________________ (ii) Dicotyledons : __________________________________________

(c) State three differences between plants in Group X and plants in Group Y.

(i) ________________________________________________________ (ii) ________________________________________________________ (iii) ________________________________________________________

(d) Complete the following table

Monocotyledons Differences Dicotyledons

Leaves

Number of petals

Number of cotyledon

10. Diagram shows the classification of plants.

(a) What is represent by Y? ___________________________________________________________

(b) State three characteristics of plant Z? (i) ________________________________________________________ (ii) ________________________________________________________ (iii) ________________________________________________________

(c) What is represented by P?

___________________________________________________________ (d) How does P reproduce?

___________________________________________________________

Plants

Flowering

X Example :

Maize plant

Non-flowering

Moss Algae Conifer Y Example :

Plant Z

11. The diagram shows four animals labeled as T, U, V and W. (a) Based on your observation of animals T, U, V and W . State the characteristics of the body covering of the animal :

(i) T - _____________________________________________________ (ii) U - _____________________________________________________ (iii) V - _____________________________________________________

(iv) W - _____________________________________________________ (b) Classify the animals T, U, V and W according to their ways of fertilization.

T, U, V and W

Type of fertilization

Name of animals

12. The diagram below shows four different types of animals.

(a) What is the common classification used to group all these animals together. ___________________________________________________________

(b) Give two common characteristics that can be used to classify these animals into smaller groups.

(i) _____________________________________________________ (ii) _____________________________________________________

(c) Classify the animals based on similar characteristics they have and give example of the animals based on the diagram above. Fill in the spaces provided.

L, M, N and O

Similar characteristics

Examples of animals

13. Diagram shows a picture of animals P, Q, R, S and T. Based on your observation in the diagram,

(a) State one characteristic of any four of the animals P, Q, R, S and T. P : ____________________________________________________ Q : ____________________________________________________ R : ____________________________________________________ S : ____________________________________________________ T : ____________________________________________________ (b) Classify the above animals into two groups based on common

characteristics. Name the animals belonging to each group.

Animal

Name of animal

Common characteristics

14. The diagrams below show four type of Malaysian fruit. (d) Based on your observation of the pictures above, classify the seeds of the

fruits into two groups and write the examples in the table below.

(e) Give four characteristics of the plants germinated from the seeds of one of the classified groups mentioned above. (i) ________________________________________________________ (ii) ________________________________________________________ (iii) ________________________________________________________ (iv) ________________________________________________________

Classification of seeds Examples based on pictures above

15. The diagram shows six animals.

(a) State one similarity among all the six animals. ___________________________________________________________

(b) State three characteristics that can be used to classify the animals.

(i) ________________________________________________________ (ii) ________________________________________________________ (iii) ________________________________________________________

(c) Classify the animals based on the similar characteristics that can be

observed by filling in the spaces provided below.

Animals

(i) Similar characteristics

(ii) Examples of animals

(iiii) Similar characteristics

(iv) Examples of animals

16. The diagram shows pictures of several parts of plants. Look at the parts of plants in the diagram.

(a) State one characteristic of any four of the following parts.

U : ______________________________________________________ V : ______________________________________________________ W : ______________________________________________________ X : ______________________________________________________ Y : ______________________________________________________ Z : ______________________________________________________

(b) Classify U, V, W , X, Y and Z into two groups based on their common characteristics.

U, V, W, X, Y and Z

Part of plant

17. The diagram shows a picture of animals J, K, L, M and N. Based on your observation in the diagram,

(a) State one characteristic of any four of the animals J, K, L, M and N.

J : ____________________________________________________ K : ____________________________________________________ L : ____________________________________________________ M : ____________________________________________________ N : ____________________________________________________ (c) Classify the above animals into two groups based on common

characteristics. Name the animals belonging to each group.

J, K, L, M and N

Common characteristics

Animals

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