Write a note on animal kingdom? In the way of bio.
Answers
Kingdom Animalia has been classified into 10 different subphyla based on their body design or differentiation.
The different subphylum of the animal kingdom are as follows:
Porifera
Coelenterata (Cnidaria)
Platyhelminthes
Nematoda
Annelida
Arthropoda
Mollusca
Echinodermata
Protochordata
Vertebrata
Porifera means organisms with holes. They are commonly known as Sponges.Example of subphylum Porifera includes- Spongilla, Sycon, etc.
Coelenterata (Cnidaria)
The term Coelenteratais derived from the Greek word “kilos” which means hollow-bellied.Example of subphylum Coelenterata includes – Hydra, Jellyfish, etc
Platyhelminthes
Platyhelminthes are commonly known as flatworms.
Example of subphylum Platyhelminthes includes -Tapeworm, Planaria, etc.
Nematoda
Phylum Nematoda consists of nematodes or roundworms. Example of subphylum Nematoda includes – Ascaris, Wuchereria, etc.
Annelida
Annelids are commonly known as segmented or ringed worms. Example of subphylum Annelida includes – Earthworm, Leech, etc.
Arthropoda
Arthropod means jointed legs. Animals which have jointed appendages belong to this phylum. This is the largest phylum in the animal kingdom.Example of subphylum Arthropoda includes – Spiders, butterflies, and mosquitoes.
Mollusca
Phylum Mollusca consists of a large group of animals. Example of subphylum Mollusca includes- Snails and octopus.
Echinodermata
The term Echinodermata is derived from the Greek words, echinos meaning hedgehog and derma meaning skin. Thus, echinoderms are spiny-skinned animals.Example of subphylumEchinodermata includes- Sea urchins, starfish, etc.
Protochordate
Protochordates have the following features:
Bilaterally symmetrical and triploblastic.
Have true coelom.
Habitat: marine.
The notochord is present at some stages of lives.Example of subphylum Protochordates includes- Balanoglossus, etc.
Vertebrata
Phylum Vertebrata consists of animals with a true vertebral column. They have an internal skeleton where muscles are attached and help in movement.Vertebrates are further grouped into five classes. They are-Pisces, Amphibia, Reptilia, Aves, Mammalia.
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Animal Kingdom➫ A category of living organisms comprising all animals Compare plant kingdom & mineral kingdom.
➧ Some Phylum in Animal Kingdoms are:-
▬▬▬▬▬▬▬▬▬▬▬▬▬⤵
❶❭ Porifera:-━━━━━━━━━━━━━━━☟
❱ Body is cylindrical & asymmetrical.
❱ Canal system is present.
❱ Cellular level of organisation.
❱ It is diploblastic.
❱ They reproduce by budding in Asexual Reproduction.
❱ Special cells are choanocytes.
❱ Skeleton is in the form of spicules.
▶Ex:- Sycon & Sponges
❷❭ Coelenterata:-━━━━━━━━━━━━━━━☟
❱ Body is Radially symmetrical.
❱ Canal system is absent.
❱ Tissue grade level of organisation.
❱ Body wall is diploblastic.
❱ Opening served by mouth & anus.
❱ Special Cell or Cnidoblasts.
❱ It occurs in the form of polyp & Medusa.
❱ It have gastrovascular cavity.
❱ It poses tentacles called Nematoblasts.
▶Ex:- Hydra & Jellyfish
❸❭ Platyhelminthes:-━━━━━━━━━━━━━━━☟
❱ Body is bilaterally symmetrical, flattened & Ribbon shaped.
❱ Digestive system is absent or incomplete.
❱ Body cavity is absent.
❱ Body is triploblastic.
❱ It is bisexual or Hermaphrodite.
❱ Respiration is an aerobic.
❱ They possess sućker.
❱ Circulatory or respiratory system is absent.
▶Ex:- Planaria & Tape worm
❹❭ Nematoda:-━━━━━━━━━━━━━━━☟
❱ Body is bilaterally symmetrical or cylindrical.
❱ Body has tissue level of organisation.
❱ It is mostly parasites organism.
❱ Body is triploblastic.
❱ Respiratory or circulatory system is absent.
❱ Sex are separate.
❱ They have tissue but no real organ.
▶Ex:- Ascaris & Hook worm
❺❭ Annelida:-━━━━━━━━━━━━━━━☟
❱ Body is cylindrical, bilaterally symmetrical & metamerically.
❱ Body structure ring-like segment.
❱ Respiration by gills or moist skin.
❱ Body is triploblastic.
❱ Excretory organs are nephridia.
❱ Digestive & circulatory system are well developed.
❱ Locomotory organs are parapodia.
❱ They have true body cavity.
▶Ex:- Earthworm & Leech
❻❭ Arthropoda:-━━━━━━━━━━━━━━━☟
❱ Body is bilaterally symmetrical & segmented.
❱ Exoskeleton shed periodically during growth.
❱ Body is covered with non living exoskeleton.
❱ Body wall is triploblastic.
❱ Body divided into head, Thorax & abdomen.
❱ It have jointed appendages.
❱ It possess compound eyes & antennae.
❱ Respiration by gills, trachea & book lungs.
▶Ex:- Cockroach & Spider
❼❭ Mollusca:-━━━━━━━━━━━━━━━☟
❱ Body is bilaterally symmetrical.
❱ Shell formed of calcium carbonate.
❱ Body covered with mantal & hard shell.
❱ Body is triploblastic & Coelomate.
❱ Body divided into head, foot & visceral mass.
❱ Foot is ventral & muscular.
❱ Respiration by gills or ctenida.
❱ Blood may be Black - blue.
▶Ex:- Octopus & Unio
❽❭ Echinodermata:-━━━━━━━━━━━━━━━☟
❱ Body is radially symmetrical.
❱ Body size is spherical or cylindrical.
❱ Body surface covered with spines.
❱ Body is triploblastic & have coelomic cavity.
❱ It possess power of regeneration.
❱ No head tail right & left side.
❱ Body differentiated into oral & aboral surface.
❱ It have water vascular system.
▶Ex:- Starfish & Antedon
❾❭ Chordata:-━━━━━━━━━━━━━━━☟
❱ Nerve cord hollow tubular & dorsal.
❱ Notochord is present.
❱ Heart is ventral.
❱ Circulatory system is always closed.
❱ RBCs are present.
❱ Endoskeleton is present.
❱ A series of pharyngeal gill-silts present in the pharyngeal wall.
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