Kingdom Animalia Class-7th Goyal Brothers Prakashan Biology Solutions
Kingdom Animalia Class-7th Goyal Brothers Prakashan Biology Solutions Ch-2 unit-2. We Provide Step by Step Answers of Objectives, Fill in the blanks , Definitions , Match the followings and Short/Long Question Type answers of Chapter-2, Unit 2, Animalia. Visit official Website CISCE for detail information about ICSE Board Class-7.
Animalia ICSE Class-7th Goyal Brothers
Biology Solutions Chapter-2, Unit-2
|Book Name||Goyal Brothers|
|Topic||Solution of exercise questions|
Animalia ICSE Class-7th Goyal Brothers
I. Multiple Choice Questions. Tick(√ ) the correct choice.
1. Animals without vertebral column are called
Ans: (d) Invertebrates
2. Earthworms belongs to
Ans: (d) Annelida
3. Pore-bearing animals belong to
Ans: (b) Porifera
4. Tentacles are present in
Ans: (a) Hydra
5. Respiration through gills occurs in
Ans: (a) Pisces
6. Animals which can live both in water and on land belong to:
Ans: (b) Amphibia
II. Give one word for the following :
- Small bones which make up the backbone _vertebrates_.
- Animals without backbone _Invertebrates_.
- Porous animals _Porifera_.
- Joint-footed animals _Arthropoda_.
- Animals with soft body and hard shell _Mollusca_.
- Warm-blooded animals with mammary glands _Mammals_.
III. Find the odd-one out, giving reasons in support of your answer:
1. Amoeba, Euglena, Paramecium, Chlamydomonas
Reasons: It is a plant
2. Tapeworm, Roundworm, Liver fluke, Earthworm
Reasons: It is an internal parasite.
3. Starfish, Brittle star, Sea urchin, Crab
Reasons: It is Arthrapoda.
4. Crocodile, Tortoise, Frog, Snake
Reasons: It has 4 chambers in heart.
VI. Which of the following statements are true(T) and which ones are false(F)? Mark T or F :
- Snail is an invertebrate animal. [T]
- Bat is a vertebrate animal. [T]
- Coelenterata and porifera. [T]
V. Give the differences between :
1. Invertebrates and Vertebrates animals
|Invertebrates animals||Vertebrates animals|
|1. Invertebrates do not possess a backbone not an internal skeleton.||1. Vertebrates possess a backbone and an internal skeleton.|
|2. Generally, their body size is smaller than vertebrates.||2. Generally, their body size is larger than invertebrates.|
|3. It includes Autotrophic, Parasitic, and Heterotrophic.||3. It is usually heterotrophic.|
2. Warm-Blooded and Cold-Blooded
|1. They obtain energy from food consumption.||1. They obtain energy from the surrounding environment|
|2. They easily adapt to any temperatures outside.||2. It’s difficult for them to survive in extreme temperature conditions|
|3. Examples: Mammals and birds are warm-blooded||3. Examples: Reptiles, insects, and fish|
3. Coelenterata and Porifera
|1. Radially symmetrical and motile||1. Poriferans are asymmetric and non-motile|
|2. The body consists of two cell layers||2. The body consists of a single cell layer.|
|3. Possess a tissue organisational level.||3. Possess a cellular organisational level.|
- Classification: Classification is the process of arranging things in groups or classes according to their resemblances and affinities and gives expression to the unity of attributes that may exist amongst a diversity of individuals.
- Species: Species is defined as a group of organisms that consist of similar individuals capable of interbreeding or exchanging genes among themselves.
- Invertebrate animals: Invertebrate is the group of animals that neither possess a vertebral column nor do they develop a vertebral column in their lifetime. It is derived from the notochord.
- Vertebrate animals: Vertebrates are animals that have a backbone or spinal column, also called vertebrae. These animals include fish, birds, mammals, amphibians, and reptiles.
VII. Give four example each of :
- Vertebrates: Birds, mammals, fishes and reptiles
- Invertebrates: Spiders, worms, snails and insects like butterflies
VIII. Name the largest group of invertebrates.
Answer: Insects are the largest group of invertebrates and have six legs, two antennae, and three body parts.
IX. Write the character on the basis of which animals are classified into vertebrates and invertebrates.
Answer: The animals are classified into vertebrates and invertebrates on the basis of the presence of backbone.
X. Name the different major groups of invertebrates, giving two examples in each case.
Answer: Major groups of invertebrates include
→ Sponges, Sycon
Coelenterata Example → Hydra and Sea anemone
Helminths Example → Flatworm (Liver fluke, Tapeworm)
Nematoda Example → Roundworm (Ascaris)
Mollusca Example → Snail, Mussel and octopus.
Annelida Example → Earthworm and Leech
Arthropoda Example → Butterfly,and Honey bee
Echinodermata Example → Starfish and Sea urchin.
XI. Name the major groups of vertebrates giving two examples in each case.
Answer: The major groups of vertebrates are divided into five common classes:
Pisces (Fish) Example → Rohu and Shark
Amphibia Example → Toads and Frogs
Reptiles Example → Snakes and crocodile.
Mammals Example → Lion and Human.
Aves (Birds) Example → Peacock and Crow
XII. Classify the following animals into their their respective groups:
Snail, Amoeba, Hydra, Earthworm, Starfish, Sea anemone, Cockroach, Roundworm, Spider, Sponge, Butterfly, Bat, Whale, Crocodile, Frog, Crow, Cow, Shark and Prawn.
Snail → Mollusca
Amoeba → Protozoa
Hydra → Coelenterata
Earthworm → Annelida
Starfish → Echinodermata
Sea anemone → Coelenterata
Cockroach → Arthropoda
Roundworm → Nematoda
Spider → Arthropoda
Sponge → Porifera
Butterfly → Arthropoda
Bat → Mammals
Whale → Mammals
Crocodile → Reptiles
Frog → Amphibia
Crow → Aves
Cow → Mammals
Shark → Pisces
Prawn → Arthropoda
— : end of Tissues in Plants Class-8th Goyal Brothers Prakahan:–
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