Anatomy of Flowering Plants Secondary Growth: Secondary growth is absent in monocotyledons, but present in dico
Cells => Tissues =>Organ =>organ system =>body Organism Such organization is essential for more efficient and better co-ordinated
Phylum : Annelida Class : Oligochaeta        Order : Terricolar
Phylum : Arthoropoda Class : Insecta Subclass : Pterygota Order : Dictyogota Family : Blattidae Genus : periplaneta
Frog Phylum : Chordata Sub phylum : Vertebrata Section : Gnathostomata Class : Amphibian Sub cl
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