Animal Diversity pt3

Porifera – Basal Metazoans (simplest animals, no true tissues)

Cnidaria – Diploblastic/Eumetazoa Animals (two tissue layers: ectoderm and endoderm)

Acoela – Bilaterians (simple bilaterally symmetrical animals, lacking a coelom)

Echinodermata – Deuterostomes (radial symmetry in adults, bilaterally symmetrical larvae)

Chordata – Deuterostomes (includes vertebrates like fish, birds, mammals)

Mollusca – Protostomes (coelomates with bilateral symmetry, including snails, clams, etc.)

Annelida – Protostomes (segmented worms with bilateral symmetry)

Nematoda – Protostomes (roundworms, unsegmented, with bilateral symmetry)

Arthropoda – Protostomes (segmented, exoskeleton, and jointed appendages, e.g., insects, crustaceans)