ANIMAL KINGDOM

[Audio] 7702131311 Animal E Plant and Animal Kingdom PARMAR SSC.

[Audio] 7702131311 & No symmetry/Asymmetry: Eg: Porifera Radial Symmetry: Symmetry along any plane passing through the centre. Eg: Coelentrata, Echinodermata, Ctenophora Bilateral Symmetry: Eg: Platyhelminthes or flatworms, Nematodes, Annelida, Arthropoda Porifera, Coelenterata, Ctenophora: Diploblastic Rest all: Triploblastic Mesoglea: jelly like matrix 2 germ layers 3 germ layers Acoelom Mesoderm: Middle germ layer : Psuedocoelom S Eucoelom PARMAR SSC Coelom: it is the body cavity present between the body wall, and the gut wall Coelom has a mesodermal lining Porifera Coelenterate Ctenophora Platyhelminthes Nematoda/ Aschelminthes Annelida Arthropoda Mollusca Echinodermata Chordata Eucoelomata: true ceolem Psuedocoelomata: false coelom.

[Audio] 7702131311 Circulatory Systems Open Circulatory System: It is a system where there is no vessel to contain the blood and it flows freely through the cavities of the body Closed Circulatory System: The blood is enclosed in the vessels in the heart while circulating Notochord Segmentation seen in Annelida Arthropoda Chordata: Derived from mesoderm Rod like structure Present in dorsal side (upper side or back side of an animal) Eg: Chordata.

[Audio] 7702131311 KINGDOM ANIMALIA TRICK 2 PC ums on the basis m I Classified into phyla on the basis of extent and type of body design differentiation found PA Eukaryotic Multicellular Heterotrophic Cell wall absent Most of them are mobile ↑: MEC ↑ Characteristics of Porifera All Phylums (in order) Porifera Coelenterate Ctenophora Platyhelminthes Nematoda/Aschelminthes Annelida Arthropoda Mollusca Echinodermata Chordata Pores lead to large body cavity called Spongocoel Ostium: water canal system (spaces) -. o > They have holes called pores i.e. body is perforated that is why called sponges Have water canal system (pores se paani) Asymmetrical body Cellular level organization Two layer germ layers: Diploblastic Exclusively aquatic Non-motile animals They are hermaphrodite (male + female) Mainly found in marine habitat Some are freshwater animals PARMAR SSC Ectoderm: cells outside the body Endoderm: cells inside the bodyii Spongocoel · Endoskeleton is present Other examples: Euplectella, Spongilla (Freshwater sponge), Scyon, Euspongia (bathing sponge) (Glass sponge).

[Audio] 7702131311 Characteristics of Ctenophora : Characteristics of Coelenterata/Cnidaria , Body is soft Show bioluminescence Exclusively marine They are hermaphrodite They are also known as Sea Walnuts and Comb Jellies Radial symmetry Reproduction: Sexual reproduction Eg: Pleurobrachia and Ctenoplana Ectoderm: makes up cells outside of body Endoderm: makes inner lining of the body Aquatic animals Tissue level organisation Hard skeleton developed outside called Exoskeleton made of calcium carbonate Body made of two layers: Diploblastic Anus is absent Radial symmetry (divided in equal parts from anywhere) Central gastrovascular cavity is present eg: Coral and hydra are are freshwater animals (eg: Mouth is present surrounded by tentacles Mostly marine somewhere, freshwater animals (eg: Hydra) Sea anemone Stinging cells are present in Cnidoblast known as Nematocyst Characteristics of Platyhelminthes dorsoventrally flattened body like a ribbon They have flattened body, dorsoventrally Bilateral symmetry Organ level organisation Triploblastic animals: three germ layers True internal cavity/coelom absent: Acoelomate Body cavity ·It They can be parasitic or free living . Free living Parasite PARMAR SSC I· Coelom have organs accommodated Either free, living or parasitic and terrestrial Suckers and hooks are usually present Hermaphrodite (Male+Female part present) animals Anus is absent Mo They have FLAME CELLS for excretion and osmoregulation Incomplete digestive system (common opening for mouth and anus).

[Audio] 7702131311 Characteristics of Nematodes/Aschelmithes / Animals show sexual dimorphism · · ↑ Organ system organization Renette cells present Most forms are parasitic, but some are free living in soil/water Parasitic forms are pathogenic (causes disease) Eg: Ascaris, Wucheria, Ancyclostoma (hookworm) false cavity (Different entry and exit point) * L Body is cylindrical Bilateral symmetry Triploblastic organisation Organ level organisation No real organs present Pseudocoelom present Alimentary is complete: mouth and anus (entry and exit point same) eg: Elephantiasis (filarial worms) Worms in intestines (roundworms/pinworms) Sexes are separate Hermaphrodite: having both male and female part Unisexual: either male or female part ↑ ↑ Locomotory organs paired, lateral appendages parapodia (Nereis) Alimentary canal is tube like extend from mouth to anus They are usually found in freshwater, marine water, land Characteristics of Annelida PARMAR SSC : system organization ⑭ Y Nephridia: For osmoregulation and excretion / Bilaterally symmetrical Triploblastic Cylindrical/dorsoventrally flattened Brown colour skin is present True coelomate animal True organ packaged in coelom Organ level organisation Body segmetation is present Reproduction: Sexually.

[Audio] 7702131311 Characteristics of Arthropoda Insecta is the largest class Largest phylum in animal kingdom They have jointed legs Bilateral symmetry Segmented body into head, thorax/cahals thorax, abdomen Open circulatory system (blood openly flows; not through a blood vessel) Coelom is present and is blood filled Triploblastic Respiration through gills, trachea Excreation through Malpighian Tubules Exoskeleton is made of chitin Unisexual Alimentary canal is complete Terrestrial/aquatic (fresh/marine animals) Sexes are separate Devil fish: common name of octopus Characteristics of Mollusca PARMAR SSC 2nd largest phylum ↳ on body: Bilateral symmetry/asymmetrical Body is soft Exoskeleton is hard (snails) Little segmentation Open circulatory system :.

[Audio] 7702131311 Cuttle fish belongs to phylum Mollusca Blue colour blood: Haemocyanin Alimentary canal is complete Kidney like organs for excretion is present Respiration through gills Unisexual Entire body covered in mantle (a fold of thin skin) Foot is for locomotion Characteristics of Echinodermata I :I ↑ I Spiny skinned organism Star shaped, spherical, elongated Radial symmetry Triploblastic Coelomic cavity is present No segmentation Organ level system system organization Me Characteristics of Chordata I Types: a) Protochordata b) Vertebrata Notochord not developed properly I They have notochord: rod like structure Paired gills slits in pharynx Bilateral Triploblastic Organ system level organisation Closed blood vascular system Notochord properly developed Heart is ventral ·. Coelomate Rod like structure > Hemichordata Invertebrates PARMAR SSC.

[Audio] 7702131311 Characteristics of Protochordata I Post anal tail present I Do not have proper notochord present during all stages of life Bilaterally symmetrical Triploblastic Coelomate animals I Nerve cord is present Pharyngeal gill slits present PARMAR SSC.

[Audio] 7702131311 Ill Characteristics of Vertebrates Characteristics of Cyclostomata , hog fishes, lamprey They are jawless vertebrates eg: Petromyzon/Myxine · Arthropoda Crayfish Silverfish Characteristics of Pieces PARMAR SSC / Mammals Whale Dolphins S , Shark, tuna ! They are fishes eg: Dog fish Chambered heart: 2.

[Audio] 7702131311 Characteristics of Amphibians salamander They have mucous glands in skin for respiration They have 3 chambered heart eg: Frogs, toads, amphibians ↳or through gills R , Cold blooded animals Characteristics of Reptiles They have 3 chambered heart Exception: Crocodile 4 chambered heart Cold blooded animals eg: snake, turtle, lizard, crocodile Characteristics of Aves They are warm blooded animals They have 4 chambered heart They lay eggs Oviparous Characteristics of Mammalian Viviparous They are warm blooded organism They have 4 chambered heart They have mammary glands Exception: Mammals but lay eggs eg: Platypus and echidnas : PARMAR SSC.