Selina Concise Class 9 Biology Solution Chapter No. 8- ‘Five Kingdom Classification’ For ICSE Board Students
Five Kingdom Classification
A)
1) Answer: d) vertebrates and invertebrates
The animals are mainly divided into two categories i.e. vertebrate and invertebrate. Where, vertebrates have backbone and invertebrates are without backbone.
2) Answer: d) Bat, Parrot, oyster –vertebrates
Both Bat and parrot are vertebrates. The oyster do not have backbone and it comes under invertebrates.
3) Answer: c) Rana tigerina
The binomial scientific name includes scientific language. Rana tigrina is a scientific name of frog. Other names are the common names of organisms.
4) Answer: d) Mule is neither a donkey nor a horse.
The mule is a fertile one, where cross between two different species occur. The donkey and horse both are different species and after cross it does not produce a fertile ‘mule’.
B)
1) Answer: Carolus Linnaeus was the one who introduced the binomial system of naming living being.
2) Answer:
The c) external ear and d) give birth to young ones are the two characters which are common to dog, humans, squirrel, bat, camel and monkey.
3)
Column I |
Column II (Answer) |
| Pine | iv) Gymnosperm, v) Plantae |
| Earthworm | vi) Animalia |
| Bread mould | i) Fungi |
| Amoeba | vii) Protista |
| Moss | v) Plantae, viii) Bryophyta |
| Bacteria | ii) Monera, iii) Prokaryote |
C) Answer:
2) Answer:
Scientific names of:
Man-Homo sapiens
Domestic cat-Felis domesticus
Peepal tree- Ficus religiosa
3) Answer: The people on the earth are from different countries and those who belongs to science have to read each other’s research work. To avoid confusion between local or common names, the scientific names were introduced. Scientific names belongs to scientific language and this will help people to understand or recognize species. So, the scientific names of living beings considered better than their common names.
4) Answer: Following are the two drawbacks in classifying organisms under the old two kingdom classification:
- Bacteria are prokaryotic organisms and some of bacteria have flagella. The flagella helps bacteria to move. Hence, bacteria cannot be called plants.
- Euglena have chloroplasts like plant and cell mouth for eating like animals. So, Euglena cannot be called plant or animal.
5) Answer: Species includes individuals which can normally breed among themselves and can produce fertile young one. All human on the earth today differ in their facial feature, colour and height etc. They can interbreed among themselves and able to produce offspring. That’s’ why they belongs to single species Homo sapiens.
6) Answer:
Ficus religiosa (Peepal)
Zea mays (Maize)
Bombyx mori (Silkmoth)
7) Answer: There are five kingdoms according to the new classification and are:
Kingdom Monera
Kingdom Protista
Kingdom Fungi
Kingdom Plantae
Kingdom Animalia
8) Answer:
a> Vertebrata
b> Mammalia
c> Insecta
d> Aves
9) Answer: Animals that are included in the invertebrates are housefly, silverfish, jellyfish and sponge.
10) Answer:
a)
Vertebrate |
Invertebrate |
| Vertebrates are those animals which have backbone. | Invertebrates are those animals which don’t have backbone. |
b)
Insecta |
Arachnids |
| The body of class Insecta is divided into three parts i.e. Head, thorax and abdomen. | The body of class Arachnida is divided into two parts i.e. Fused Head and thorax, Abdomen. |
c)
Flatworm |
Roundworm |
| Flatworm have flat ribbon-like unsegmented body. | Roundworm have soft, round and cylindrical body. |
11) Answer:
Amoeba- Nucleus, tentacle, food vacuole.
Hydra- Invertebrate, Cnidaria, Crustacea.
Fish- Gills, paired fins, ear drum.
Earthworm- Invertebrata, Annelida, Insecta.
Grasshopper- Wings, trachea, proboscis.
Butterfly- Insecta, Invertebrata, Mollusca.
Whale- Gills, mammary glands, fat under the skin.
Pigeon- Feathers, wings, hair.
Monkey- External ear, sweat gland, lateral line.
Bat- Aves, Mammalia, Chordata.
12) Answer: The cold-blooded animals unable to maintain their body temperature and it is regulated by external environment. The warm-blooded animals have constant temperature which is kept by internal environment. The amphibians are cold-blooded animals and Birds are warm-blooded animals.
13) Answer:
Class Aves – Duck
Class Amphibia- Midwife toad
Class Reptilia- Gharial
D)
1)
a) Answer: Similarity- Both the insects and birds have wings.
Difference- Insects are invertebrates (don’t have backbone) and Birds are vertebrates (have backbone).
b) Answer:
Similarity- Both whale and fishes are aquatic.
Differences- Lungs are present in whales for the breathing. Gills are present in fishes for breathing.
c) Answer:
Similarity- Both Snakes and earthworms do not have wings and legs.
Differences- Snakes have backbone and Earthworms do not have backbone.
d) Answer:
Similarity- Both bat and pigeon are winged animals.
Differences- Bats have mouth and pigeon have beak.
e) Answer:
Similarity- Both cuttlefish and Dogfish are marine animals.
Difference- Cuttlefish do not have backbone and Dogfish have backbone.
f) Answer:
Similarity- Both wall lizard and frog have cold blood.
Difference- Wall lizard live on land and frog live both in water and on land.
2) Answer:
Column I |
Column II |
| Annelida | Earthworm |
| Porifera | Sponge |
| Mollusca | Octopus |
| Reptilia | Snake |
| Pisces | Trout |
| Mammal | Rabbit |
From column I, Amphibia is left out because Amphibia does not include pigeon. From column II, pigeon is left out because it belongs to class Aves.
E) Answer:
Tyrannosaurus is a reptile and Kangaroo is mammal. Therefore, they are not related to each other.
The following are characteristics of Tyrannosaurus:
- It is included in cold blooded animals
- Scales are present on the body
- Scales may be horny
- They lay eggs and have leathery shell
- Three-chambered heart
- Cold blooded animals.
