Question

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Explain Kindmgdom ANIMALIA in detail describing the main characteristics of each of the classification.


Answer as per
Diversity in living organisms class 9 [ Biology ]

Answer 1

Heya,

KINGDOM ANIMALIA

Kingdom Animalia consists of multicellular eukaryotes which lack cell wall and chlorophyll.
Except some lower animals, organisms of Kingdom Animalia possess a definite body shape. They grow till their body attains maturity.

The classification of Kingdom Animalia is based on various characteristic which are as follows,

• Structural differentiation of body.
•Body symmetry.
•Body cavity.
•Germinal layers.
•Notochord

✴PHYLUM PORIFERA

• Poriferans are Diploblastic acoelomate plant like organisms.
•Called Sponges
•Found in marine habitat.
Ex.... Sycon

✴PHYLUM COELENTRATA

•Cnidarians are Diploblastic acoelomate organisms
•Their body has tissue level organisation.
•Found in marine as well as fresh water.
Ex... Hydra

✴PHYLUM PLATYHEMINTHES

•Having dorso-vebtrally flattened Triploblastic acoelomate body.
•Nervous system is well developed in these organisms.
•There's no body cavity.
Ex.... Planaria

✴PHYLUM NEMATODA

•They are called roundworms.
•The organisms demonstrate organ system level of organisation
•They found freely in water or soil.
Ex... Male, female Ascaris

✴PHYLUM ANNELIDA

•Found in sea water, fresh water or in moist soil.
•Annelids maybe unisexual or hermaphrodites.
•Reproduction occurs by sexual means.
Ex... Nereis

✴PHYLUM ARTHROPODA

• The phylum consist of Triploblastic, segmented, billaterally symmetrical organisms.
•Body is differentiated.
•It is the "Largest phylum",comprising approx 90% of all organisms in Kingdom Animalia.
•Found in land , water and as parasites.
Ex....Butterfly

✴PHYLUM MULLUSCA

•They are Triploblastic.
•Body is covered by a thin and fleshy "mantle".
•Separate sexes are found.
Ex... Pila (apple snail)

✴PHYLUM ECHINODERMATA

•It comprises Marine animals.
•They are Triploblastic, Enterocoelomic.
•Sexes are separate.
Ex.... Asterias (Star fish)

✴PHYLUM CHORDATA

•Thet are Triploblastic, enterocoelomates.
•Having bilaterally symmetrical bodies.
•Presence of a dorsal hollow nerve cord.

CLASSIFICATION OF PHYLUM CHORDATA

There are subphyla of phylum chordata.... "protochordata " and "Vertebrata".

✴PROTOCHORDATA

•These are non - vertebrates.
•Mainly occur in marine habitat.
•Single layer epidermis is present.
Ex.... Herdmania

✴VERTEBRATA

•Sexes are separate.
•Paired appendages are seen.
•Respiration occurs by gills and by lungs.

✴PHYLUM VERTEBRATA.....

There are following classes of VERTEBRATA

•Pisces
Ex... Trygon

•Class Amphibia
Ex... Toad

•Class Reptila
Ex... Turtle

•Class Aves
Ex... Tyto Alba

•Class Mammalia
Ex... Cat

Hope this will help you!! : )

Answer 2

Heya !!

Here's your answer.. ⬇⬇

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⚫ Kingdom Animalia

↪ According to ' Five Kingdom Classification ', given by Robert Whittaker, all the multicellular animals are included in ' Kingdom Animalia.'

↪ It includes millions of animal species.Except Sponges, most of the animals possess locomotory organs and can move from one place to other.

↪ A very wide range of diversities is seen in Animal Kingdom.

↪ The bases to classifying animals into different phyla and classes are :-
- Cellular Association
- Symmetry
- Embryonic layers
- Notochord
- Vertebral Column
- Jaws .... etc.

↪ The multicellular animals includes Invertebrates and Vertebrates.


◼ Invertebrates

♦ Phylum - Porifera :
↪ Body having pores, mainly marine habitat, live as stationary life, remaining attached with rocks.
↪ No tissue formation, simple multicellular animals.
↪ Asexual Reproduction by Budding and sexual reproduction by gamates.
↪ Ex. :- sycon, Sponges, Bath sponge.

♦ Phylum - Coelenterata :
↪ Multicellular animals, habitat in fresh water or marine.
↪ A common cavity called Coelenteron, functioning both as a body cavity and digestive tract. Hence this Phylum is know as Coelenterata.
↪ Asexual reproduction by Budding and also shows sexual reproduction.
↪ Ex. :- Hydra, jellyfish.

♦ Phylum - Platyhelminthes :
↪ Body dorso-ventrally flattened, endoparasitic.
↪ Alimentary canal totally absent or incomplete, flame cells are for excreation.
↪ Ex. :- Tapeworm, Liver fluke.

♦ Phylum - Nematoda :
↪ Alimentary canal is complete. Nervous system having a nerve ring and nerve cord. The animals are Cylindrical and roundworms.
↪ Ex. :- Ascaris, Guinea worm, Filaria.

♦ Phylum - Annelida :
↪ Body is divided into more or less segments.
↪ Alimentary canal complete, circulatory system is found first time. Locomotion with the help of setae, parapodia.
↪ Ex. :- Earthworm, Leech, Nereis.

♦ Phylum - Arthropoda :
↪ The largest Phylum of the animal Kingdom. Possess several joined appendages.
↪ Digestive system well developed, specific respiratory organs such as gills, gill-books, booklungs, etc.
↪ Ex. :- Cockroach, Spider, Housefly.

♦ Phylum - Mollusca :
↪ Soft body, asymmetry, The soft covering around body is called mantle.
↪ For Respiration there are Ctenidia in the mantle cavity.
↪ Ex. :- Slug, Octopus, Conch.

♦ Phylum - Echinodermata :
↪ Body covered with spicules as exoskeleton.
↪ They all are unisexual animals.Digestive system is of simple type.
↪ Ex. :- Brittle star, Starfish.

♦ Phylum - chordata :
↪ Formation of Notochord during Embryonic development.
↪ Well developed digestive system, gills, skin or lungs for Respiration.
↪ It includes :-

▶ Pisces or Fishes
↪ Ex. :- Shark, Rayfish,Cat fish.

▶ Amphibia
↪ Ex. :- Frog, Salamanders, Toad.

▶ Reptilia
↪ Ex. :- Wall-Lizard, Chameleon, snake, crocodile.

▶ Aves
↪ Ex. :- Pigeon, sparrow, ostriches.

▶ Mammalia
↪ Ex. :- Rabbit, Bat, Rat, Man.

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Hope it helps..

Thanks :))