Anmol Sharma is teaching live on Unacademy Plus
Class 11th 04. ANIMAL KINGDOM NEET/AIIMS ANMOL SHARMA
WHAT TO STUDY? Basis of Classification Levels of Organisation Symmetry .Diploblastic and Triploblastic Organisation (Germ Layer) . Coelom Segmentation Notochord . Classification of Animals . Phylum Porifera Phylum Colenterata Phylum Ctenophora . Phylum Platyhelminthes .Phylum Aschelminthes Phylum Annelida Phylum Arthropoda . Phylum Mollusca Phylum Echinodermata Phylum Hemichordata . Phylum Chordata
* Class Chonarichythyes * Class Amphibia . Class Aves Class Cyclostomata Class Osteichthyes Class Reptilia . Class Mammalia Key Point of Animal Kingdom
Segmentation . In some animals, the body is externally and internally divided into segments with a serial repetition of at least some organs. The body shows this pattern called metameric segmentation and the phenomenon is known as metamerism. e.g., in earthworm.
Notochord Notochord is a mesodermally derived rod-like structure formed on the dorsal side during embryonic development in some animals. . Chordates - Animals with notochord in any stage of life. e.g., Fishes, Amphibians, Reptiles, Birds, Mammals etc. . Non chordates - Those animals which do not form this structure are called non-chordates, e.g., Porifera to echinoderms.
Digestive system Incomplete digestive system - digestive system has only a single opening to the outside of the body that serves as both mouth and anus. e.g Coelenterates, Platyhelminthes .Complete digestive system - digestive systenm has two openings, mouth and anus. e.g., aschelminthes to chordates.
circulatory sysle is pmpe out of the heat t .open type - Blood is pumped out of the heart and the cells and tissues are directly bathed in it or closed type in which the blood is circulated through a series of vessels of varying diameters (arteries, veins and capillaries)