Summary

This document provides notes on the animal kingdom, covering topics such as classification, symmetry, and body organization. The material presents key features of various animal phyla, from Porifera to Chordata.

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ANIMAL KINGDOM / 3. asis of classification non chordates chordates 1- 2Q/s Basis of Classification Symmetry Asymmetric Bilateral...

ANIMAL KINGDOM / 3. asis of classification non chordates chordates 1- 2Q/s Basis of Classification Symmetry Asymmetric Bilateral : SPONGES Radial when any organism plane passing divides into through central 2 identical ranis divides halves only into in organism one two identical plane. N EET 2019 - Odh halves N EET - 2019 Coelenterates , ctenophores Echinoderms. Type of organisation Diploblastic : An undifferentiated layer , between external ectoderm mesoglea present and endoderm. Coelenterates , ctenophores Triploblastic : Third layer mesoderm Diploblastic mi pleonastic between ectoderm and endoderm Platyhelminths to chordates. Coelom. wall and Presence OR Absence of Body wall which is lined mesoderm gut by (coelom) : Important for basis of classification. Coelomates : Animals Pseudo coelomates : Instead havingofcoelom mesoderm , mesoderm is 0 present in scattered pouches. Awelomate Awelomates : coelom Absent RepMT 2015- → Segmentationdivided on some into organisms : (metamerism body is internally and enternally segments. , In Earthworm ( ANNELIDS ) Notochord mesoderm ally Derived Rod like structure formed on dorsal side embryonic. Non chordates 1 PORIFERA Known as SPONGES Generally Marine Asymmetrical - Primitive - cellular level of organisation Canal Have a water system water enters through minute pores ( Ostia) in body wall to central cavity (SPON GOW Ey - water goes out from body through OSCULUM. =p water Canal system helpful in : 2) food gathering 2) Respiratory exchange 3) Removal of waste CHOANOCYTES collar cells line sfongoueelNEand canals : :. ET 2017 ' - DIGESTION : INTRACELLULAR BODY SKELETON- : Made of spicules on spongin fibres REPRODUCTION : Senese are not separate (hermaphrodite : sponges reproduce Asexually By fragmentation sexually by formation of gametes :. °. Fertilisation Internal : Development Indirect with a larva morphologically distinct from adult.. EXAMPLES Sy con Cscypha) :.. Spon gilla (fresh water sponge) Euspongia ( Bath sponge) 2 COELENTERATES Aquatic , mostly marine , sessile or free - swimming Radially symmetrical: known as CNIDARIA Derived from cnidoblast OR Cnidocytes which contain stinging capsules nematocysts ) present on tentacles. Cnidoblast : are used for. Anchorage Defense. Capture of prey. - Exhibit tissue level Diploblastic - Have a central gastro vascular cavity with - na single opening g Mouth on HYPOS TO ME. CORALS : Type of cnidarians composed of Ca coz - DIGESTION : Extracellular & Intracellular BODY FORMS : POLYP MEDUSA - sessile free swimming umbrella cylindrical form shape HYDRA AURELIA ADAMS ZA (Jelly fish ) cnidarians both exhibit which exist in forms Alternation Generation ( METAGENESIS) OBELI A of sexually Medusa Asexually Polyp EXAMPLES : Phys ALIA (Portugese Man of ) War ADAM SIA ( sea Anemone) PENNA TULA ( Sea Pen) GORGON ZA (Sea fan) MEAN DRINA ( Brain coral) CTE NO PHO RA 3 Exclusively marine Radially symmetrical Diploblastic organisms Tissue level of organisation bears 8 external rows of Body ciliated comb inplates , help locomotion. DIGESTION : Extracellular & Intracellular REPRODUCTION sexual : Only by means Fertilisation entrechat with Indirect pleura brachia - Development BIOLUMINESCENCE '. is well Marked. EXAMPLE : PLEUR0 BRACHIA ( NO PLAN A 4 PLATY HELM IN : THE S fl AT WORMS) Dorso ventrally flattened body ( Mostly endoparasites in animals Awedornate Bilaterally symmetrical Triploblastic, , organ level of organisation. Hooks and suckers parasitic forms present in. Some parasites absorb directly from bodyinsurface. flame cells specialised cells help : REPRODUCTION : excretion & osmoeeegulation Series are not separate Fertilisation Internal Development through many stages High Regeneration cqacityCPLANARS.tt#pm7-zoiy EXAMPLES : TAENIA Gapeworm) FASCI OLA ( liver fluke ) - ASCH ELM IN THE S 5 Aquatic or Kuster.at ; free living or Parasitic Organ system level Bilateral symmetry - Trip loblastic Pseudocodemate - with Alimentary canal Complete a well developed muscular pharynx - tube Excretory removes body waste through excretory frore. Raffi.ie?isatiY.n?EntNerIiaeen.:tEndirL-atloif Earnt.tt#gnmoE EXAMPLES : AS CARIS (Roundworm) W Uch ERE RIFF , ar , n. AN CYCLO S T OM A ( Hookworm) WORM) I 6 A N N ELIDA Aquatic , Terrestrial free living , Parasitic. i level Organ system Keech Bilateral symmetry metameric ally segmented Triploblastic Coelomate Nevis , little Annelia ( Latin : annulus : ring) Have Longitudinal & circular Muscles which help in locomotion. Aquatic annelids ( NER EIS) has lateral appendages parapodia which help in swimming. closed circulatory system is present.. NE PURI DIA : Help in Osmoregulation & excretion Neural system : consist of haired ganglia connected lateral ventral by nerves to Double - cord. REPRODUCTION : NER EIS : Dioecious EARTHWORMS & LEECHES : Monoecious EXAMPLES : N ERE IS PHE RET IM A (Earthworm) HIRUDIN ARIA (Blood leech) sucking NEE T 2016 7 ARTHROPOD A - Ai Pmi - 2015 Largest phylum Over 3- of all named species are arthropods. level Bilateral symmetry Organ system ,. Triploblastic Segmented and coelomate.. Body is covered by chitinous exoskeleton. Body Head consists of Thorax Abdomen Have Jointed Appendages Respiratory organs - Gills crustaceans : GRABS) Book Gills : Limulus ( KING CRAB ) Book Arachnids (SPIDERS) hangs : Tracheal Insects system : Encretory Systems By Malfvighiarv Tubules circulatory System open type Sensory Organs Antennae Eyes ( simple & compound) 's ( Balancing organs) statocyst ooo Reproductive System fertilisation Internal mostly oviparous OR Direct Development : Indirect EXAMPLES : ECONOMICALLY IMPORTANT INSECTS Apis ( Honey bee) Bomb yn (silkworm) Laccifeee ( Lac insect) : VECTORS Anopheles , Cullen and Aedes °. GREGARIOUS PEST : LOCUST A ° LIVING fossil : LIMULUS (King Crab). 8 MOLLUSCA Second Largest Kingdom Terrestrial or Aquatic Organ system level , Bilaterally symmetrical Triploblastic , coelomate animals. covered Body by calcareous shell : a : unsegmented - Muscular & Visceral hump : Distinct head , foot : A soot & spongy layer of skin forms a mantle over visceral hump. : space between hump and mantle is called Mantle cavity like Giles where feather present. Respiratory & Excretory function. anterior head The region. Sensory tentacles. file like The mouth rasping organ : - for feeding ( RADULA ) =p Reproduction : usually Dioecious Oviparous Indirect Development -. EXAMPLES : Pila ( Apple snail) Pintado ( Pearl oyster) Aplysia (sea ) hare sepia ( cuttle fish) Dentalium ( Tusk shell) L oligo (squid) Octopus (Devil fish) Chaeto pleura ( chiton) 9 ECHINODERM AT A Edified) Endoskeleton of. Calcareous ossicles level All marine - organ system organisation Tnifrloblastic - Coelomate Adults Radially symmetrical : Bilateral Larvae symmetrical : DIGESTION : Digestive system complete lower ( ventral side) : mouth on and anus on upper ( dorsal side ) EXCRETION : Excretory system ABSENT. REPRODUCTION series : separate. : External Fertilisation : Indirect Development ( free swimming larva) - EXAMPLES : Asturias (starfish) Echinus ( sea urchin) Antedon ( sea NEE I lily)cucumber 2019 Odb 's Tucuman ( Serai ) ophiura ( Brittle star) NEE ' -2017 HE MI CHOR DATA 10 Earlier considered as a sub - phylum under chordate but different twelve chordates now a phylum non -. Have a rudimentary structure in COLLAR Beano REGION called ST OMO CHORD... glossies PHYLUM small like MARINE of worm level Animals of organisation organ system - BODY cylindrical composed of : : , Anterior Proboscis collar I g Circulation : OPEN TYPE of EncretionLong : Trunk Proboscis Gland. Through Reproduction : series separate External fertilisation Indirect.. EXAM PES : B alamo gloss us , Sacco glossies Developmen CHORDATA Pm 2012 - r Notochord present Coelomate Bilaterally symmetrical , Jriploblastio level organ system , closed circulatory system. - Chordata Proto chordates vertebrate # Uroehordata cephalochordate Notochord notochord entends only in from tail larvae head to tail and is of ' persistent throughout life EXAMPLES : EXAMPLES : Ascidian Ascidian Branchiostomov Salpa Dolielunr (Amphioxus OR Lancelet ) Pme VERTEBRATA som CYCLO STOMATA ECTOPARASITES FISHES All living Mars are ON. Have a elongated body. 6 15 pairs of for RESPIRATION gilland circular slits -. Have without Jaws a sucking mouth. devoid of scales and paired fins Body. Cranium and Vertebral column : CARTILAGINOUS. Marine but to migrate for freshwater spawning. Their larva , metamorphosis , return to ocean after. circulation : closed type EXAMPLES : Petromyzow PMT 2015 ( Lamprey ) - nine - my : ( hagfish) CHO ND RICH TH YES NE ET 2016 Marine animal cartilaginous - endoskeleton Mouth located ventrally. Notochord present Grill slits separate throughout life. Gills without operculum (gill )cover -. Skin tough with minute placoid scales.. Teeth are modified placoid scales - which are backwardly directed. Animals predaceous are. Due to absence bladder swim to avoid of air , they constantly sinking. Heart : 2 chambered blooded) They are poikilothermaus ( cold Reproduction : series separate ; Tn makes : pelvic fins bear claspers. °. Internal fertilisation : viviparous EXAMPLES Scoleodon ( : Dog fish) Pristis ( saw fish) : White shark) : Carcharodonfoueat : Trygon ( string Ray) [ has poisonous sting] Torpedo [ have electric organs] : PMT - 2014 05TEICH TH YES Both marine & freshwater fishes. endoskeleton Bony Mouth terminal 4 pairs of gills bills covered by operculum. skin covered with ctenoid scales cycloid). Air bladder present which - regulates buoyancy.. cold blooded Heart 29 - chambered ( one auricle one - ventricle) Series separate - Enternal Fertilisation Mostly oviparous - Direct Development EXAMPLES o Marine : ( flying fish) Exo cactus : Hippocampus (sea horse) Labeo ( Rohn freshwater : ) Cathar ( Katha) clarions ( maguey Aquarium : Betta ( fighting fish) Pterofhyuum ( Angel fish) AM PHI BIA can live in aquatic and terrestrial habitat have 2pairs of limbs. Mostly : Divisble into head. Body: & Trunk Tail present in some. - Skin is moist ( without scales) Eyes have eyelids. Tympanum represents ear. Alimentary canal , urinary and reproductive tracts into CLOACA open common chamber. Respiration : bills lungs Eauricle , Through skin. Heart 2 ventricle) blooded : 3 chambers ( 2 t cold Reproduction : separate ; Enternal series fertilisation. Indirect development ° EXAMPLES Bufo (Toad) Salamandra : Rana (salamander) ( Frog ) Hyla free frog) Ichthyofrhis ( limbless amphibian) REPTILIA. Referee) Reptwm : creep of locomotion crawlingterrestrial mode Mostly covered Body by dry & cornified skin. we Have Epidermal scales ( SCUTES ) Do not have enternal Tympanum represents ear ear openings -. 2 pairs of limbs ( ) if present Heart :3 chambered crocodile chambered : 4 ( ) Cold blooded Reproduction : series separate ; Internal fertilisation Direct development o.. Snakes and Lizards shed their scales as skin cast. Norrington EXAMPLES OF REPT ILIA : echelons ( Turtle) Testudo ( Tortoise) Calotes (Garden lizard) crocodiles (crocodile) Alligator chameleon (Tree lizard) lizard) Jlemidactylus (Wall Poisonous snakes : Naja ( cobra) vipera (viper) Bangarms ( krait) AVES Presence of feathers Possess beak. Forelimbs modified to wings. Hindlimbs have scales and modified for Paro. walking , swimming branches or * clasping tree. dry without Skin oil glands tail Only. gland present at base of. Endoskeleton fully ossified (bony) and long been.EE , g are hollow ( pneumatic bones) additional chambers CROP Digestive tract has : ' GIZZARD Heart : 4 chambered ; warm blooded Respiration : By lungs ( Air. sacs supplement) Reproduction : series separate ; Internal fertilisation Oviparous Direct development °. ;. EXAMPLES : Corvus (crow) struthio ( ostrich Pavo ( Peacock) Neofhron Columba ( Pigeon) Psittacidae ( Parrot) ( Vulture) Afrtenodytes ( Penguin) MAMMALIA " Found in habitats variety of Most unique character. Mammary glands Skin has hair -. External ear OR Pinnae Different types of teeth present. Heart : 4 chambered ; Homoiothermeus ( warm blooded) Respiration : By lungs Reproduction : sexes separate Fertilisation internal Direct development viviparous ( with few exceptions) EXAMPLE Oviparous : ornithorhynchus (Platypus) - : NEE T - 2017 PM 2015 7 - Viviparous : - Macrobius ( kangaroo) : - Pteropus ( flying fore) :. Eqqus ( House) :. camelus (camel) : Delphinus ( Dolphin) : Macaca ( Monkey) - - i - Panthera leo ( Lion) : - Rattus ( Rat) : Canis Balanoptera : ( Dog) - - (Blue whale) : - Felis ( Cat) : - Panthera tigris Giger) : - Elephas ( Elephant) Questions with enamples and this table Previous YRS IMP's

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