-NA body layers
-do not have digestive system (diffusion)
-do not have respiratory system
-hermaphrodites (but can reproduce asexually by budding)
-asymmetrical
-Acoelomate
-Neither protostome or deuterosome
-Locomotion: sessile
Cnidaria
-2 body layers
-Single opening for digestion and eating
-No respiratory system
-Hydro static Skeleton
- Hermaphrodites
-Radial symmetry
-Coelom
-Neither protostome or deuterostome
-Locomotion: Sessile, medusa
Platyhelminthes (flat worm)
-3 body layers
-single opening for digestion and eating
-No respiratory system
-Hydro-static skeleton
-Hermaphroditic
-Bilateral symmetry
-Protostome
-Locomotion - muscle elongation/contraction, swimming
Nematoda (round worms)
-3 body layers
-two openings (mouth to anus)
-No respiratory system
-hydro static
-Sexual and Asexual
-Bilateral symmetry
-Pseudocoelom
-Protostome
-Locomotion - Muscle elongation and contraction; Swimming
Annelida (segmented worms)
-3 body layers
-Complete digestive tract
-Complete respiratory system
-Hydro static skeleton
-segmented
- sexual and asexual (monoecious or dioecious)
-Bilateral symmetry
-Coelom
-Protostome
Mollusca (mollusks)
- 3 body layers
-Complete digestive tract
-not segmented
-No skeletal system (some have exoskeleton)
-Hermaphrodite
-Internal or external shells
-Bilateral symmetry
-Coelom
-Protostome
Arthropoda (crustaceans)
-3 body layers
-complete digestion with two openings
-segmented
-Invertebrate- jointed limbs and cuticles; Insects exoskeletons
-Sexual
-Bilateral
-Coelom
-Protostome
Echinodermata (starfish)
-3 body layers
-Complete digestive system
-Endoskeleton
- Not segmented
-Sexual and Asexual Reproduction
-Plates in their internal organs
-Bilateral symmetry
-Coelom
-Deuterostome