Evolutionary Trends In Animal Body Plans — a labelled NEET Biology diagram with a definitions lexicon.
Evolutionary Trends in Animal Body Plans Labelled parts: Animalia, Porifera, Cnidaria, Platyhelminthes, Nematoda, Annelida, Arthropoda, Mollusca, Echinodermata, Chordata, Cellular organization, Tissue level, Organ level, Organ-system level, Asymmetrical, Radial symmetry, Bilateral symmetry, Diploblastic, Triploblastic, Acoelomate, Pseudocoelomate, Coelomate. The simplest multicellular animals (e.g., sponges) that lack true tissues and organs. FYI: Sponges are filter feeders, and their body structure relies on specialized pores (ostia) and water canals for water flow (choanocytes).