Презентация по биологии на тему General Characteristics of Phylum Arthropoda

PHYLUM ARTHROPODAMost diverse group (more than 1 mln species)Nearly 80 % of all animals!Live almost everywhere! GENERAL CHARACTERISTICSMeaning: “arthro”- “poda”- GENERAL CHARACTERISTICSBilateral symmetryBody divided into tagmata, consisting of _____________ and ________________ (туловище) TAGMOSISA)B) GENERAL CHARACTERISTICSChitinous _____________________________ MOLTINGNonexpansible exoskeleton impose restrictions to growthTo grow, arthropods must shed it’s outer covering (exoskeleton) and grow largerMolt from 4 to 7 times before adulthood GENERAL CHARACTERISTICSComplex muscular system (attached to ____________________________) GENERAL CHARACTERISTICSCoelom is _____________________ DIGESTIVE SYSTEM______________________ digestive systemMouthparts are modified 1. Esophagus2. Gastric ceca extending from stomach3. Anus4. Intestine5. Gizzard  6. Crop7. Mouth8. Pharynx CIRCULATORY SYSTEM___________________________ circulatory system, with ________________________________ RESPIRATORY SYSTEMBy _____________surface, ______________, _____________________ (air tubes), _____________ lungs R.SYSTEM: AIR TUBULES R.SYSTEM: GILLS R.SYSTEM: BOOK LUNGS EXCRETORY SYSTEMPaired excretory glands called __________________ or _______________________ (in some)Some with ______________________________________ E.SYSTEM: ANTENNAL GLAND E.SYSTEM: MALPIGHIAN TUBULES NERVOUS SYSTEM REPRODUCTIONUsually separate sexesOften with __________________________________________________________________________ in some CLASSIFICATION3 classes:Crustacea (Ракообразные)Insects (Насекомые)Chelicerates (Паукообразные) Class:CRUSTACEA40000 speciesMostly _______________Some are ____________ CRUSTACEA: body regionsComposed of _____ segmentsBody consist of 3 tagma: __________________________, __________________________, __________________________