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11 Cards in this Set

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Level of Organization
tissue --> organ --> organ system
Radical symmetry
animals have circular body, with central axis.
Ex: sea anonome
- lack a head.
Bilateral Symmetry
one cut through the midpoint gives two mirror image halves, a right side and left side.
Body: Sac
mouth is use for transporting nutrients and wastes
Body: Tube within Tube
animal has mouth an anus, digestion occurs along digestive canal
segmentation
division of animal body along its length into series of repeated parts called segment.
Annelids
Members: segmented worms, clam worms, tube worms (ocean-living), and leeches.
Arthropods
Members: crayfish
Echinodermata
Members: seastar
Sponges
in own lineage
Kingdom Animalia
- eukaryotic
- multicellular
- no cell walls (unique characteristic of animalia)
- gametes (female-egg; male-sperm)
-heterotrophic (seek food -grazers, herbivores, carniovres, etc)
- Movement - muscles