SELINA Solutions for Class 9 Biology Chapter 8 - Five Kingdom Classification

Page / Exercise

Chapter 8 - Five Kingdom Classification Exercise Ex. 1

Question A

1. The animals (Kingdom Animalia) are mainly grouped under two categories

(a) bilaterally symmetrical and radially symmetrical

(b) coelomate and acoelomate

(c) aquatic and terrestrial

(d) vertebrates and invertebrates

2. Which one of the following examples does not come under the particular group?

(a) Mushroom, Yeast, Fern - Fungi

(b) Paramoecium, Euglena, Sponge - Protista

(c) Starfish, Cuttlefish, Dogfish - Pisces

(d) Bat, Parrot, Oyster - Vertebrates

3. Which one of the following is an example of binomial scientific name?

(a) Green alga

(b) Snow leopard

(c) Rana tigrina

(d) China-rose

4. Which one of the following is the correct statement about the respective animal(s)?

(a) Donkey and horse should be considered one single species because they can successfully mate and produce an offspring.

(b) Donkey and horse are two different genuses.

(c) Mule is a separate species.

(d) Mule is neither a donkey nor a horse.

Solution A

1. (d) vertebrates and invertebrates

2. (d) Bat, Parrot, Oyster - Vertebrates

3. (c) Rana tigrina

4. (d) Mule is neither a donkey nor a horse.

Question B.1

Who had introduced the binomial system of naming living beings?

Solution B.1

Carolus Linnaeus had introduced the binomial system of naming living beings.

Question B.2

Which two characters out of (a)-(e) given below are common to dog, humans, squirrel, bat, camel and monkey?

(a) scales on the skin

(b) wings

(c ) external ears

(d) give birth to young ones

(e) a functional tail

Solution B.2

The two characters common to dog, humans, squirrel, bat, camel and monkey are:

(c ) external ears

(d) give birth to young ones

Question B.3

Match the items in Column I with as many as possible and even repeatedly from column II.

Column I

Column II

1.Pine

(i) Fungi

2. Earthworm

(ii) Monera

3. Bread mould

(iii) Prokaryote

4. Amoeba

(iv) Gymnosperm

5. Moss

(v) Plantae

6.Bacteria

(vi) Animalia

(vii) Protista

(viii) Bryophyta

Solution B.3

Column I

Column II

1.Pine

(iv) Gymnosperm

(v) Plantae

2. Earthworm

(vi) Animalia

3. Bread mould

(i) Fungi

4. Amoeba

(vii) Protista

5. Moss

(v) Plantae

(viii) Bryophyta

6.Bacteria

(ii) Monera

(iii) Prokaryote

 

Question C.1

Rearrange the following categories of classification in their proper sequence starting with the highest.

species, family, genus, class, order, phylum

Solution C.1

Phylum Selina Solutions Icse Class 9 Biology Chapter - Five Kingdom ClassificationClass Selina Solutions Icse Class 9 Biology Chapter - Five Kingdom ClassificationOrder Selina Solutions Icse Class 9 Biology Chapter - Five Kingdom ClassificationFamily Selina Solutions Icse Class 9 Biology Chapter - Five Kingdom ClassificationGenus Selina Solutions Icse Class 9 Biology Chapter - Five Kingdom ClassificationSpecies

Question C.2

Give the scientific names of man, domestic cat, and peepal tree.

Solution C.2

Man

Domestic cat

Peepal tree

Homo sapiens

Felis domesticus

Ficus religiosa 

Question C.3

Why are scientific names of living beings considered better than their common names?

Solution C.3

In science, people from different countries with different languages have to read about each others research. So, it was necessary to eliminate any possible confusion created by local names. Scientific names are based on certain rules which are universal. They are unique and can be used to identify an organism anywhere around the world. That is why, scientific names of living beings are considered better than their common names.

Question C.4

Mention any two drawbacks in classifying organisms under the old two kingdom classification.

Solution C.4

According to the 'Two-Kingdom Classification', proposed by Carolus Linnaeus in 1758, living organisms were classified into two broad kingdoms, Plants and Animals.

The drawbacks in classifying organisms under the old two kingdom classification are:

1. Bacteria were kept in Kingdom Plantae. These organisms have no chlorophyll and do not carry out photosynthesis. Bacteria do not have a definite nucleus nor a nuclear membrane nor chromosomes.

2. Fungi were kept in Kingdom Plantae. Bread mould is a multicellular fungi. However, it does not possess roots, stem and leaves, lacks chlorophyll and does bear any flowers, fruits and seeds like plants.

Question C.5

All humans on earth today may differ widely in their facial features, colour, height, etc. Yet, they belong to a single species Homo sapiens. Give one reason why they are not considered belonging to different species.

Solution C.5

Species means an organism of a particular kind whose members can interbreed among themselves to produce fertile young ones.

All humans on the earth today may differ widely in their facial features, colour, height, etc. Yet, they belong to a single species Homo sapiens because they can interbreed among themselves and produce a normal offpsring.

Question C.6

Rewrite the following scientific names correctly.

ficus religiosa (peepal), zea Mays (maize) and Bombyx Mori (silk moth).

Solution C.6

Ficus religiosa (Peepal)

Zea mays (Maize)

Bombyx mori (Silkmoth)

Question C.7

Name the five kingdoms according to the new classification.

Solution C.7

The five kingdoms according to the new classification are:

1. Kingdom Monera

2. Kingdom Protista

3. Kingdom Fungi

4. Kingdom Plantae

5. Kingdom Animalia

Question C.8

What are the group names of the following categories of animals?

(a) Animals with a backbone _____________

(b) Animals with a hairy skin ___________

(c )Animals with three pairs of legs ___________

(d)Animals with feathers _________

Solution C.8

(a) Animals with a backbone: Vertebrata

(b) Animals with a hairy skin: Mammalia

(c )Animals with three pairs of legs: Insecta

(d)Animals with feathers: Aves

Question C.9

Which ones of the following animals are invertebrates?

Housefly, Silverfish, Trout, Jellyfish, Whale, Penguin, Lizard and Sponge

Solution C.9

Invertebrate animals:

Housefly

Silverfish

Jellyfish

Sponge

Question C.10

Give any one difference between each of the following :

(a) Vertebrate and Invertebrate,

(b ) Insecta and Arachnida,

(c) Flatworm and Roundworm,

Solution C.10

 

(a) Vertebrate and Invertebrate

 

Vertebrates

Invertebrates

Have their unique backbone with the spinal cord

 

Do not have a backbone

 

(b) Insecta and Arachnida

 

Insecta

Arachnida

Have three pairs of legs

Have four pairs of legs

 

(c) Flatworm and Roundworm

Flatworm

Roundworm

Dorso-ventrally flattened

Cylindrical in shape and are tapered at both ends

 

 

Question C.11

Given below is a list of ten animals each followed by three terms or features. Underline the term which does not match with the animal.

(i) Amoeba -Nucleus, tentacle, food vacuole

(ii) Hydra - Invertebrata, Cnidaria, Crustacea

(iii) Fish - Gills, paired fins, ear drum

(iv) Earthworm - Invertebrata, Annelida, Insecta

(v) Grasshopper-Wings, trachea, proboscis

(vi) Butterfly- Insecta, Invertebrata, Mollusca

(vii) Whale - Gills, mammary glands, fat under the skin

(viii) Pigeon - Feathers, wings, hair

(ix) Monkey - External ear, sweat glands, lateral line.

(x) Bat - Aves, Mammalia, Chordata

Solution C.11

(i) Amoeba - Nucleus, tentacle, food vacuole

(ii) Hydra - Invertebrata, Cnidaria, Crustacea

(iii) Fish - Gills, paired fins, ear drum

(iv) Earthworm - Invertebrata, Annelida, Insecta

(v) Grasshopper - Wings, trachea, proboscis

(vi) Butterfly - Insecta, Invertebrata, Mollusca

(vii) Whale - Gills, mammary glands, fat under the skin

(viii) Pigeon - Feathers, wings, hair

(ix) Monkey - External ear, sweat glands, lateral line

(x) Bat - Aves, Mammalia, Chordata

Question C.12

Explain the meaning of the terms cold-blooded and warm-blooded (homeothermal).

Solution C.12

Cold-blooded animals

Warm-blooded animals

These animals cannot maintain their body temperature. Their body temperature is regulated by the external environment. 

Animals whose body temperature is kept relatively constant by internal mechanisms. 

E.g. Insects, Amphibians

E.g. Birds, Mammals

Question C.13

Name three animals (belonging to different classes) which breathe by means of lungs but have no external ears (pinnae).

Solution C.13

1. Class Amphibia: Tree frog

2. Class Reptilia: Cobra

3. Class Aves: Duck

Question D.1

Mention any one major similarity and one major difference in the following pairs of animals:

(a) Insects and Birds

(b) Whales and Fishes

(c ) Snakes and Earthworms

(d) Bat and Pigeon

(e) Cuttlefish and Dogfish

(f) Wall lizard and Frog

Solution D.1

(a) Insects and Birds

Similarity

Difference

Have wings

Insects

Birds

Invertebrates 

Vertebrates

(b) Whales and Fishes

Similarity

Difference

Aquatic

Whales

Fishes

Have lungs for breathing

Have gills for breathing

(c) Snakes and Earthworms

Similarity

Difference

Do not have any limbs

Snakes

Earthworm

Vertebrates

Invertebrates

(d) Bat and Pigeon

Similarity

Difference

Breathe through lungs

Bat

Pigeon

Have external ears

Have internal ears

(e) Cuttlefish and Dogfish

Similarity

Difference

Marine animals

Cuttlefish

Dogfish

Invertebrates

Vertebrates

(f) Wall lizard and Frog

Similarity

Difference

Cold-blooded animals

Wall lizard

Frog

Completely adapted to life on land

Live partly on land and partly in water

Question D.2

Match the names of animal groups in Column I with the names of animals in column II.

Column I (Group)

Column II (Animals)

Annelida

Pigeon

Porifera

Snake

Mollusca

Earthworm

Reptilia

Sponge

Amphibia

Octopus

Pisces

Trout

Mammal

Rabbit

Which names are left out that do not match and why?

Solution D.2

Column I

Column II

Annelida

Earthworm

Porifera

Sponge

Mollusca

Octopus

Reptilia

Snake

Pisces

Trout

Mammal

Rabbit

Amphibia from Column I and Pigeon from column II are left out. They do not match as Pigeon comes under Class Aves and not Class Amphibia.

Question E.1

Study the figure given below and answer the following questions.

Selina Solutions Icse Class 9 Biology Chapter - Five Kingdom Classification 

(a) Identify the organism shown in the figure.

(b) To which kingdom does the organism belong?

(c) Mention two characteristics of the organism that differentiate it from plants.

Solution E.1

(a) Toadstool (mushroom).

(b) Kingdom Fungi.

(c) Characteristics of fungi that differentiate it from plants:

1. Fungi lack chlorophyll while plants possess chlorophyll.

2. Fungi are multinucleate while plants are uninucleate.

3. Fungi have a cell wall made of chitin while plants have a cell wall made of cellulose.

Question E.2

Look at the figure given below and answer the question that follow:

Selina Solutions Icse Class 9 Biology Chapter - Five Kingdom Classification 

(a) Mention the kingdom, phylum and class to which the organism belongs.

(b) Write any two significant characteristics of the organisms belonging to the class mentioned in (i).

(c) Mention two key features of the phylum mentioned in (i) and write the names of the five classes that it has been divided into.

Solution E.2

The organism shown in a peacock.

(a) Kingdom: Animalia

Phylum: Chordata (Vertebrata)

Class: Aves

(b) Significant characteristics of organisms belonging to class Aves:

1. They have exoskeleton made of feathers.

2. Their body is streamlined and the skeleton is light to facilitate flying.

3. They have scaly legs and four-chambered heart.

 (c) Key features phylum Chordata (Vertebrata):

1. They have a well-developed vertebral column.

2. They have a head, trunk and two pairs of appendages.

Vertebrates are divided into five classes:

1. Pisces

2. Amphibia

3. Reptilia 

4. Aves

5. Mammalia