Heterotrophic
Eukaryotic
Prokaryotic
Autotrophic
Embryos with gastrula stage
Shape held by collagen
Shape held by cell wall
Multicellular
Unicellular
Protist called choanoflagellates.
Prokaryotes called streptococcus bacterium.
Eukaryotes called cnidarians.
Cynobacteria called anabaena.
Radial
Bilateral
Asymmetry
Protostomes
Deuterostomes
Protostomes
Deuterostomes
Radial
Bilateral
Asymmetry
Radial
Bilateral
Asymmetry
Unlike other animals, sponges lack tissues.
The interior surface of the sponge is lined with choanocytes that have flagella and function in nutrition and gas exchange.
Mesohyl lies within the two layers of a sponge and functions in skeleton formation and dispersal of nutrients.
Sponges have highly developed reproductive organs.
A layer of cells that form during embryogenesis.
A layer of cells that directs movement of water over feeding cell surfaces.
A layer of tissues that protects the body from invading microbes.
A layer of tissues that absorb organic molecules needed for survival.
Cephalization.
Absorption of nutrients from the environment.
Derived traits.
Increased survivability.
Protostomes
Deuterostomes
Protostomes
Deuterostomes
Protostomes
Deuterostomes
Protostomes
Deuterostomes
Protostomes
Deuterostomes
Protostomes
Deuterostomes
The ability to move in horizontal directions to capture pray.
The development of specialized sensory organs at front end for guidance.
The development of muscles, digestive, circulatory and nervous systems.
The ability to wave food-gathering tentacles in all directions at once.
Endoderm
Ectoderm
Epidermis
Mesoderm
Endodermis
Endoderm
Ectoderm
Epidermis
Mesoderm
Endodermis
Repetitive segments.
Multiple pairs of legs.
A type of exoskeleton.
Regeneration of lost limbs.
Cnidaria
Ctenophora
Porifera
Arthropoda
Mollusca
Radial
No
Bilateral
Circular
Annelid worms and mollusks.
Butterflies and moths.
Crustaceans.
Sponges and octopus.
Chelicerata
Crustacea
Myriapoda
Hexapoda
Radial or bilateral symmetry.
A well-defined head or no head.
Diploblastic or triploblastic embryos.
True tissues or no tissues.
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