'Unlined body cavity' presentation slideshows

Lecture 22 Survey of Animals Invertebrates - 1

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Fig. 23-1, p.360

Fig. 23-1, p.360. Table 23-1, p.361. dorsal. posterior. ventral. anterior. Fig. 23-2, p.361. Fig. 23-3, p.363. placozoans. sponges. cnidarians. flatworms. rotifers. mollusks. annelids. roundworms. arthropods. echinoderms. chordates. deuterostomes, anus forms first in embryos.

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Classification of Organisms

Classification of Organisms. HW:. Taxonomy. The assignment of a distinctive name to each of the groups in a classification system. Animal Systematics. What is systematics? The study of the kinds and diversity of organisms and the evolutionary relationships among them.

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