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This Concept Map, created with IHMC CmapTools, has information related to: Intro to Animals - Group 3, Heterotrophs ???? Carnivores eat other animals, Endoderm: lines the pouch that forms during gas trulation (archenteron) & gives rise to the lining the digestive tract (cavity) Diplobalstic Ectoderm: covering the surface of the embryo, gives rise to outer covering of animal, & in some phyla, to the central nervous system, Animal Body Plans Basic Feature Symmetry, Characteristics of Animals Reproduction and Development, Cell Structure tobe Cells lack cell walls, from about 542 million years ago to 251 million years ago. The era began with the breakup of one supercontinent and the formation of another. Plants became widespread. And the first vertebrate animals colonized land. definition Cambrian Explostion: known for ushering an explosion of life on Earth. This included the evolution of arthropods(ancestors of today's insects and crustaceans) and chordates (animals with rudimentary spinal cords)., Nutrition ???? Herbivores eat plants, The Origin of Animals second era paleozic era, Lophotrochozoa ???? some such as ectoprocts, develops a unique structure called a lophophore., Deuterostomia ???? includes hermichordates (acorn worms), echinoderms( sea stars, and relatives) and Chordates, Body Cavity Functions Soft body coelom contains noncompressible fluid that acts like a skeleton against which muscles can work, the animals date back from about 560 years ago and are known as the Ediacaran Biota. definiton Ediacaran Biota: taxonomic period classification that consists of all life forms that were present on Earth during the Ediacaran Period and These were composed of enigmatic tubular and frond-shaped and mostly sessile, organisms., Animal Body Plans Most triploblastic animals Body Cavity, Body Cavity Functions Enables the internal organs to grow and move independently of the outer body wall, Cell Structure B Bodies are held together by proteins like collagen, Body Cavity Functions its fluid cushions the suspended organs for protection, Introduction to Animals ???? Animal Body Plans, Protostome Development Types of Cleavage Radial Cleavage, Cambrian Explostion: known for ushering an explosion of life on Earth. This included the evolution of arthropods(ancestors of today's insects and crustaceans) and chordates (animals with rudimentary spinal cords). reasons for the explosion 1.the predator-prey relationships 2.a rise in the atmosphereic oxygen 3. evolotion of the Hox Genes and micro RNA, Protostome Development Types of Cleavage determinate cleavage