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Animal District Assessment Review: Characteristics and Classification

This review covers the characteristics and classification of animals, including multicellularity, reproduction, development, specialized parts, and movement. It explores various animal groups such as Cnidarians, Mollusks, Insects, Echinoderms, Reptiles, Birds, and Mammals. Learn about different animal classes and their defining features in a comprehensive assessment review.

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Animal District Assessment Review: Characteristics and Classification

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  1. Animal District Assessment Review 1. Characteristics of ALL Animals: Multicellular- many celled Reproduce Sexually Develop from an embryo Have specialized parts like organs and tissue Animals move Consumers- eat other organisms Cells with a nucleus, no cell wall, has a cell membrane They are consumers. They eat other organisms Cnidarians- stinging cells All mollusks gastropods - one shell - slugs and snails bivalves - two shells - mussels and clams cephalopods - no shell - octopus, squid

  2. Animal District Assessment Review 6. Sponge- Porifera Cnidarian - Cnidaria – Jellyfish, hydra, sea anenome Annelid - Annelida – segmented worms, earthworms Mollusks - Mollusca - squid, octopus Gastropod/Bivalve/Cephalopod- All Mollusca snails clams octopus Insects - Arthropods - grasshopper Echinoderm - Echinodermata - starfish

  3. Animal District Assessment Review 8. Gills, fins, lateral line system, scales 9. Lose gills , Lose tail , gain lungs, gain legs 10. 11. Reptile egg has a leathery shell, can be laid on land, has amniotic fluid Lightweight Body – hollow bones, oxygen energy flight muscles

  4. Animal District Assessment Review Ectotherm - cold blooded, body temps. change with environment. amphibians, reptiles, fish Endotherms - warm blooded, body temps. do not change with environment. Birds, mammals Fish - Jawless – lampreys, Cartilaginous – Sharks, Bony - Salmon Amphibian - Frogs, toads, salamanders Reptile- Snake, lizard, crocodile, alligator, turtle Bird: Mammal - Human, dolphin, bat, whale Monotremes- lay eggs Marsupials- young develop in mothers pouch Placental Mammals- young develop inside mother with a placenta giving young food, oxygen and removing waste.

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