Kingdom Animalia Goyal Brother Solutions ICSE Class-9 Biology Ch-10. We Provide Solutions of Exercise-10 Kingdom Animalia Goyal Brother Prakashan ICSE Class-9 Ch-10. The solution contain All Type exercise question such as name the following, ,difference between following , MCQs, Answer the following. Visit official Website CISCE for detail information about ICSE Board Class-9.
Solutions of ICSE Class-9 Biology Ch-10 Kingdom Animalia Goyal Brother
| Board | ICSE |
| Publications | Goyal Brother Prakashan |
| Subject | Biology |
| Class | 9th |
| Writer | Dr. S.K. Aggarwal |
| Ch-10 | Kingdom Animalia |
| Topics | Solutions of Exercises-10 |
| Edition | for 2022-2023 Academic Session |
Ch-10 Kingdom Animalia Goyal Brother Prakashan ICSE Class-9 Biology Solutions
(Page-100)
Questions 1. Give the technical terms for the following:
(i) The animal in which pseudopodia are present.
Ans– The cell that forms pseudopodia is referred to as amoeba or amoeboid. The term amoeboid is used to indicate an amoeba-like cell, and thus, sets the latter apart from the true amoeba (of the genus Amoeba).
(ii) The protozoan possessing both plant and animal features.
Ans– Euglena is called as ‘connecting link’ between plant and animal, because it has characteristics of both plant and animals.
(iii) The group to which sponges belong.
Ans– Sponges are poriferans, that is, organisms belonging to the phylum Porifera. They are multicellular organisms.
(iv) The character on the basis of which the phylum cnidaria is named.
Ans– special stinging cells called cnidoblast
(v) A free-living flatworm.
Ans– Planaria’.
(vi) Three animals belonging to phylum platyhelminths.
Ans– Taenia (Tapeworms), Fasciola (Liver fluke), Planeria (freshwater flatworm)
(vii) Excretory organs of annelids.
Ans– nephridia
(viii) Organs of excretion in Arthropoda.
Ans– malpighian tubules.
(ix) Four molluscs and two echinoderms.
Ans– Four molluscs are Octopus, Pila ( Snail), Oyster Cuttlefish and two echinoderms. sea star, sea urchins
(x) The phylum in which animals possess tube feet.
Ans– Echinodermata
Questions 2. Give examples of the following:
(i) One fresh water sponge Spongilla
(ii) Two marine sponges Porifera
(iii) One jawless fish hagfish
(iv) One bony fish Tuna
(v) One cartilaginous fish. Chimeras
Questions 3. Choose the correct answer from the options given below:
(i) The pore-bearer animals are
(a) Fishes
(b) Sponges
(c) Stinging animals
(ii) An example of nematodes is
(a) Ascaris
(b) Hydra
(c) Sycon
(iii) It does not belong to Arthropoda.
(a) Snail
(b) Housefly
(c) Spider
Questions 4. Distinguish between the following:
(i) Vertebrates and Invertebrates
Ans– Vertebrates possess a backbone and an internal skeleton. Vertebrates do not possess an exoskeleton. Nearly all invertebrates possess an open circulatory system.
(ii) Marsupials and Egg-laying mammals
Ans– Monotremes and marsupials are two types of mammals with mammary glands. Monotremes lay eggs, and the eggs hatch into the pouch in the mother’s body. Marsupials give birth to undeveloped young that are developed inside the pouch.
(iii) Marsupials and Placental mammals.
Ans– A marsupial is a mammal that raises its newborn offspring inside an external pouch at the front or underside of their bodies. In contrast, a placental is a mammal that completes embryo development inside the mother, nourished by an organ called the placenta.
Questions 5. State three characteristic features of animals.
Answer : Multicellularity, Eukaryotic Cell Structure, Specialized Tissues
Questions 6. Name the major groups of animals.
Answer : Animals can be divided into five distinct groups: mammals, fish, birds, reptiles, and amphibians.
Questions 7. Answer the following:
(i) At one time sponges were classified as plants. Why?
Ans: The sponges are sessile variously branched just like plants. They have no way of capturing food or eliminating wastes and show little response to stimuli. Hence, sponges were earlier considered as plants.
(ii) Why are sponges called porous animals?
Ans: Sponges have many pores in their body through which water enters their body and they captures food. Due to the presence of these pores sponges are known as porous animals
(iii) Why tapeworm does not have a digestive system?
Ans: Tapeworms are parasites and their body walls absorb the digested food from the host animal in which they live. So, they do not need a digestive tract. Protists have flagella, cilia which are all the forms of appendages.
(iv) What is meant by metameric segmentation?
Ans: Metameric segmentation is the characteristic of Annelida and Arthropod. It is true segmentation in which external segmentation corresponds to the internal segmentation and the body is divided into a number of segments. Animals which belong to phyla Annelida and Arthropoda exhibit metameric segmentation.
(v) What is the function of cnidoblasts?
Ans: Cnidoblasts are the characteristic feature of the phylum Cnidaria. These are present on the body surface and tentacles. They contain nematocysts, which are stinging capsules. It helps in catching the prey and in defence.
(vi) Differentiate between polyp and medusa.
| Difference Between Medusa and Polyp | |
|---|---|
| Polyp | Medusa |
| Polyps are sessile | Medusae are mobile |
| Shape | |
| Polyps possess a tubular shape | Medusa has a bell-shaped body |
(vii) What do you understand by coelom.
Ans: the usually epithelium-lined body cavity of metazoans above the lower worms that forms a large space when well developed between the digestive tract and the body wall.
(viii) Give specific features of echinoderms.
Ans:
- They have a star-like appearance and are spherical or elongated.
- They are exclusively marine animals.
- The organisms are spiny-skinned.
(ix) What is a notochord?
Ans: a longitudinal flexible rod of cells that in the lowest chordates (such as a lancelet or a lamprey) and in the embryos of the higher vertebrates forms the supporting axis of the body.
(x) How does the heart of a fish differ from that of a bird?
Questions 8. Describe the important features of phylum porifera.
Answer : Their bodies are asymmetrical. Body shape can be cylindrical, vase-like, rounded or sac-like. They are diploblastic animals with two layers, the outer dermal layer and the inner gastral layer. There is a gelatinous, non-cellular mesoglea, in between these two layers.
Questions 9. Mention the unique features of cnidaria.
Answer : Their bodies are asymmetrical. Body shape can be cylindrical, vase-like, rounded or sac-like. They are diploblastic animals with two layers, the outer dermal layer and the inner gastral layer. There is a gelatinous, non-cellular mesoglea, in between these two layers.
Questions 10. Describe the main characteristics of phylum nematode.
Answer : Their body is bilaterally symmetrical and triploblastic. They are cylindrical in shape. They exhibit tissue level organization. Their body has a cavity or pseudocoelom.
Questions 11. Mention the main salient features of Annelida.
Answer :
- The Annelids are coelomate and triploblastic.
- They exhibit organ system level organization.
- Their body is segmented.
Questions 12. Describe the characteristic features of arthropods.
Answer : The body is triploblastic, segmented, and bilaterally symmetrical. They exhibit organ system level of organization. The body is divided into head, thorax, and abdomen. Their body has jointed appendages which help in locomotion.
Questions 13. Mention the important features of phylum Mollusca.
Answer : Their body has a cavity.The body is divided into head, visceral mass, muscular foot and mantle.The head comprises of tentacles and compound eyes.The body is covered by a calcareous shell.
Questions 14. Mention the characteristic features of protochordates.
Answer :
- They are generally found in marine water.
- Their body is bilaterally symmetrical, triploblastic, and coelomated.
- At a certain stage of their lives, their body develops a long, rod-like structure for support called the notochord.
- They exhibit organ system level of organization.
Questions 15. Mention four characteristic features of phylum chordata.
Answer :
- Notochord. It is a longitudinal, cartilaginous rod running between the nerve cord and the digestive tract.
- Dorsal Nerve Cord.
- Pharyngeal Slits.
- Post anal Tail.
Questions 16. Mention the major features of vertebrates.
Answer : As chordates, vertebrates have the same common features: a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail. Vertebrates are further differentiated from chordates by their vertebral column, which forms when their notochord develops into the column of bony vertebrae separated by discs.
Questions 17. Mention the main distinguishing features of amphibians.
Answer : Amphibians have a backbone, are cold-blooded, need a moist place to live, can breathe air through their skin, externally fertilize their eggs, eat meat, and grow legs when they mature
Questions 18. List the important features of Reptilia.
Answer : These are creeping and burrowing terrestrial animals with scales on their body. They are cold-blooded animals found in most of the warmer regions of the world. Their skin is dry, and rough, without any glands.
Questions 19. List the important features of Aves.
Answer :
- Fore limb modified into wings.
- They are warm-blooded animals with feathers.
- Body is divided into head, neck, trunk, and tail.
- Limbs are paired.
Questions 20. Describe the general characters of class Mammalia.
Answer : general characters of class Mammalia.
- The presence of hair or fur.
- Sweat glands.
- Glands specialized to produce milk, known as mammary glands.
- Three middle ear bones.
- A neocortex region in the brain, which specializes in seeing and hearing.
- Specialized teeth.
- A four-chambered heart.
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