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Published byAnabel Barker Modified over 9 years ago
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Overview of Animals
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Animals are… Eukaryotes Multicellular Consumers
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Invertebrates vs. Vertebrates So what is the difference? Vertebrates have a backbone while invertebrates do not.
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Bilateral vs radial symmetry Bilateral-2 halves Radial-arranged around a circle
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Invertebrate-Phylum Porifera Ex: Sponges Body is filled with pores to filter food from water
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Invertebrates-phylum Cnidaria Ex: jellyfish, hydra, sea anemone Have stinging cells called nematocysts
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Invert.-phylum platyhelminthes Ex: planaria, tapeworm Flat body First animal with a primitive brain
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Invert-phylum Nematoda Ex: hookworm Round body First animal to have a digestive tube
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Invert-phylum annelida Ex: earthworm, leech Segmented bodies Closed circulatory system
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Invert-phylum echinodermata Ex: Sea urchin sea star Spiny skin
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Invert-phylum mollusca Ex: clam, squid, octopus, snail Soft body often covered by a hard shell.
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Invert-phylum arthropoda Ex: insects, spiders, crabs, lobsters Hard exoskeleton Segmented body Jointed appendages
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Vertebrates Phylum Chordata
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Cartilaginous Fish: Class chondricthyes Ex: sharks, skate. rays Cold-blooded Gills for breathing Fins for swimming Skeletons are made of cartilage
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Bony Fish: Class Osteichtyes Ex: salmon, rockfish, flounder, tuna Cold-blooded Gills for breathing Fins for swimming Skeletons are made of bone.
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Amphibians: Class Amphibia Ex: salamanders, frogs, toads Cold-Blooded First part of life is in the water as a tadpole. Have lungs and breathe through skin
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Reptiles: class reptilia Ex: lizards, snakes, crocs & gators, turtles Cold-Blooded Scaly skin to prevent drying out. Amniotic eggs with a shell.
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Birds: class aves Ex: ostrich, chicken, eagle, hawk Warm-blooded Four-chambered heart Hollow bones reduce weight Feathers.
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Mammals: class mammalia Ex: whale, wolf, bats, rodents Warm-blooded Fur or hair Live birth. Nursing
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