Transcript Animal
Kingdom Animalia ~ Characteristics ~ Multi-cellular Eukaryotic with no cell walls Heterotrophs (consumers) motile Characteristics Cont. Animal Movement Most animals are capable of complex and relatively rapid movement compared to plants and other organisms. Animal Reproduction Most animals reproduce sexually, by differentiated haploid cells (eggs & sperm). Most animals are diploid, meaning that the cells of adults contain two copies of the genetic material. In addition to Characteristics of Life 1. Living things are organized. 2. Living things are made up of cells. 3. Living things metabolize. 4. Living things maintain an internal environment. 5. Living things grow. 6. Living things respond. 7. Living things reproduce. 8. Living things evolve. Animal Sizes Animals range in size from no more than a few cells (like the mesozoans) to organisms weighing many tons (like the blue whale). a mesozoan blue whale Animal Habitats Most animals inhabit the seas, with fewer in fresh water and even fewer on land. Animal Cells Animal Animal cells, are eukaryotic cells lack the rigid cell walls that characterize plant cells. Animal Cell Diagram Animal Bodies The bodies of most animals (all except sponges) are made up of cells organized into tissues. Each tissue is specialized to perform specific functions. Cells->tissues->organs->organ sys >organism Animal Symmetry Describes how animal body structures are arranged Allows animals to move in different ways Cnidarians and echinoderms are radially symmetrical. Most animals are bilaterally symmetrical. Symmetry: The most primitive animals are asymmetrical: No symmetry Radial Symmetry forms that can be divided into similar halves by more than two planes passing through it. Animals with radial symmetry are usually sessile, freefloating, or weakly swimming. Radial Symmetry Bilateral Symmetry Animals with bilateral symmetry are most well-suited for directional movement. Bilateral Symmetry ~ Protection and Support ~ not all animals have a skeleton, divided into 2 groups: exoskeleton – a hard, waxy coating on the outside of the body endoskeleton – support framework within the body ~Invertebrates~ No backbones 95% of all animals are in this group ~Invertebrate Phylum Porifera~ Sponges simplest form of animal life live in water Do not move around no symmetry 5000 species ~Invertebrate Phylum Porifera~ Examples: Tube Sponge, Glass Sponge, Sea Sponge ~Invertebrate Phylum Cnidaria~ Live in water Most catch cells gut have tentacles food with stinging for digesting ~Invertebrate Phylum Cnidaria~ 2 different shapes Medusa - like a jellyfish Polyp - like a hydra ~Invertebrate Phylum Cnidaria~ Examples Jellyfish, Hydra, sea anemones, and corals ~Invertebrate Phylum Platyhelminthes ~ Flatworms Flat, ribbon-like body Live in water or are parasites bilateral symmetry ~Invertebrate Phylum Platyhelminthes ~ Examples: Planaria eyespots detect light food and waste go in and out the same opening ~Invertebrate Phylum Platyhelminthes ~ Examples: Tapeworm Parasite that lives in intestines of host absorbing food ~Invertebrate Phylum Mollusca ~ Soft bodies Hard Live Shells on land or in water have a circulatory system and a complex nervous system. Important food source for humans ~Invertebrate Phylum Mollusca ~ Class Gastropoda snails may and slugs have 1 shell stomach-footed move on stomach ~Invertebrate Phylum Mollusca ~ Class Bivalves 2 shells hinged together clams, oysters, scallops and mussels ~Invertebrate Phylum Mollusca ~ Class Cephalopods squids and octopuses internal mantel ~Invertebrate Phylum Annelida ~ Segmented worms Body divided into segments (sections) Live in water or underground have a nervous and circulatory system ~Invertebrate Phylum Annelida ~ Class Earthworms eat soil and breakdown organic matter, wastes provide nutrients to soil ~Invertebrate Phylum Annelida ~ Class leeches parasites that feed on blood of other animals ~Invertebrate Phylum Arthropoda ~ Body divided into sections/segments Exoskeleton Jointed legs well developed nervous system largest group of organisms on earth ~Invertebrate Phylum Arthropoda ~ 3 subphylums: Classified into classes according to the number of legs, eyes and antennae they have. ~Invertebrate Phylum Arthropods ~ Subphylum Uniramia Class no Insecta antennae 3 pairs of legs 2 body regions - head, thorax & abdomen grasshoppers, ants, butterflies, bees ~ Phylum Chordata ~ subphylum Vertebrata 5 classes Fish Mammals Reptiles Amphibians Birds Fish Are cold-blooded Have gills and scales Live in water Have a Backbone These are Fish: Fish have Backbones Reptiles: Have scales Live on land Are cold-blooded Usually lay eggs Have a Backbone These are Reptiles Crush!!! Reptiles have Backbones Amphibians •Lay eggs •Live in water and on land •Have a Backbone •Are cold blooded •Have smooth skin These are Amphibians These are Amphibians Amphibians have Backbones Birds Have feathers Are warm-blooded Have hollow bones and most can fly Lay eggs Have a Backbone These are Birds Birds have Backbones Mammals Have hair or fur Are warm-blooded Feed milk to their young Bear live young (except monotremes) Have a Backbone These are Mammals Mammals have Backbones Clip Art Photos http://clipartuniverse.com/free-animation.shtml black widow, vulture, girl and horse, frog http://www.infohub.com/ARTICLES/platypus.html platypus http://www.herper.com/Waterspider.html water spider http://www.liveaquaria.com/ starfish http://www.discoveryschools.com.au/guides/invertab/overview.html jellyfish bmp http://www.cockroaches.sf.cz/ roach http://www.antcontrols.com/carpenter1.jpg carpenter ant http://www.kwic.com/~pagodavista/schoolhouse/species/herps/turtle.htm turtle skeleton http://encarta.msn.com/find/MediaMax.asp?pg=3&ti=761552814&idx=461518272 fish skeleton, http://www.zoology.ubc.ca/courses/bio204/lab7_photos.htm frog, lizard, bird, rat, and porpoise skeletons http://dgl.microsoft.com/?CAG=1 clips http://members.aol.com/loxocemus/snakepics/nonamer.jpg garter snake http://www.versaquatics.com/angelfish.htm fish photo, crab, nudibranch, sea turtle, http://www.montereybaywhalewatch.com/phharbp.htm porpoise photo http://museum.gov.ns.ca/mnh/nature/turtles/paint.htm painted turtle http://artsci.wustl.edu/~reglor/salgall/myon2.jpg salamander http://radical-reptiles.herpetology.com/lizardgallery/collared4.jpg collard lizard http://www.cmycat.com/greatoutdoors.htm cat photo http://www.cat.cc.md.us/courses/bio141/lecguide/unit1/shape/dkngon.html coccus bacteria http://www.smithton.tco.asn.au/wildlife/lobster/lobster.html alligator skeleton Photos continued http://saltaquarium.about.com/gi/dynamic/offsite.htm?site=http%3A %2F%2Fwww.harboraquatics.com%2Fsponge01.html spongeshttp://www.underwatercolours.com/bvi/ss5.html -Anemone http://www.meer.org/M31.htm platyhelminthes http://users.htcomp.net/weis/worms.html -earthworm http://www.smithton.tco.asn.au/wildlife/lobster/lobster.html lobster http://www.mermaid1.demon.co.uk/body_molluscs.htm snail, limpet, cuttlefish http://www.mermaid1.demon.co.uk/body_worms.htm - fanworm http://www.versaquatics.com/octopus_photos.htm octopus http://www.mermaid1.demon.co.uk/body_echinoderms.htm urchin, starfish http://www.dudak.baka.com/is373.html grasshopper on goldenrod Back to Start