Animals Invertebrates. What are Animals? Cannot make their own food Have many cells They have eukaryotic cells Movement Digest their food

Animals

Invertebrates

What are Animals? Cannot make their

own food Have many cells They have

eukaryotic cells Movement Digest their food Are we animals??

http://www.windows.ucar.edu/earth/Life/images/celltypes.gif

Animals are… Vertebrates

Endoskeleton

Invertebrates Exoskeleton No Skeleton

Animals have… Symmetry

Bilateral Most animals

Radial Jellyfish and Starfish

Asymmetrical Sponge

http://www.nmfs.noaa.gov/habitat/ead/EADimages/Sponges.png

Invertebrates Majority of Animals

(95%) No Skeleton Exoskeletons

Chitin Molt

Eight major Phyla (groups)

academic.brooklyn.cuny.edu/.../page/chitin.html

Porifera [por IF er uh] Pore-bearing

animals Sponges

http://www.lpdatafiles.com/data/mso2003/SCUBA%20SPONGES.jpg

Cnidaria [ni DER ee uh] Have special

stinging cells Hollow bodies Jellyfish, coral, sea

anemones

Platyhelminthes [plat ee hel MIN theez] Worms with

flattened bodies Planarians,

tapeworms, flukes

http://waa.uwalumni.com/onwisconsin/2003_summer/images/tapeworms.jpg

Nematoda [nee muh TOH duh]

Worms with round, tube-like bodies

Pinworms, trichina worms, heartworm, hookworm

lovemyspca.com/PetsEnemies.html

Annelida [an nuh LEE duh] Worms with

segmented bodies, body divided into rings

Earthworms, leeches, sandworms

Mollusca [mo LUSK uh] Soft-body tissue Must have at least

one: Ribbon-like tongue

with tiny teeth Protective case Layer of mantle

Clams, oysters, squid, snails, octopus

Arthropoda [AHR thruh pahd uh] Animals with

segmented bodies Jointed legs Exoskeleton Insects, spiders,

lobsters, crabs, scorpions, ticks

Echinodermata [Ee KINE o der MAT a]

Spiny Bodies Leathery-skin Live in the Oceans Starfish, sand

dollars, sea urchins

Simple vs. Complex Inverts Porifera

Sponges Most simple

invertebrate

Cnidarians Platyhelminthes

Simplest worms

Nematodes

Annelids

Mollusks

Arthropod

Echinoderm