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AS Arthropoda

"Arthropoda" means jointed foot
Arthropods are considered to be the most successful group of animals because of... sheer numbers (80% of all animals are arthropods)
Arthropods can be divided into equal left and right halves indicating ___________________ symmetry. bilateral
Arthropod bodies can be divided into clearly identifiable sections. segmentation
Arthropods have _________________ made of chitin. exoskeletons
Arthropods shed their exoskeletons during __________________. molting
Many arthropods change their shape throughout their molting stages in a process called... metamorphosis
Type of digestive system found in arthropods. complete digestive system
Type of circulatory system found in arthropods. open circulatory system
hemocoel cavities (open spaces) within an arthropod in which blood flows freely outside of blood vessels; bathing the organs.
Subphylum Trilobitomorphia includes the _______________ considered to be the ______________ of arthropods. trilobites; ancestors
Subphylum Chelicerata includes ________________ and _____________. arachnids (spiders, ticks, scorpions, mites); horseshoe crabs
Subphylum Crustacea includes ____________________. crustaceans (lobsters, crabs, shrimp, barnacles, crayfish)
Subphylum Hexopoda includes ___________________. insects (bees, ants, beetles, butterflies, grasshoppers)
Subphylum Myriapoda includes __________________. myriapods (centipedes and millipedes)
Created by: ballb