Abstract
<div><p>Annelids live in freshwater, sea and land water. Some are parasitic. Body symmetry is lateral symmetrical. The nervous system consists of a brain ganglion connected by a nerve cord that extends to form a rope ladder. The excretion device is called nephridium. Respiration using the epidermis on the entire surface of the body and takes place in diffusion. Closed circulatory system. Habitat earthworms live in burrows in moist, fertile soil and the temperature is not low. Annelida classification is based on the presence or absence after being divided into classes namely Polychaeta, Oligochaeta, and Hirudinea. Some types of Annelids are useful as food. Wawo and palolo worms can be used as a source of animal protein for humans, earthworms are useful for fertilizing agricultural land. Leeches can be used to clean pus on infected wounds. In addition, hirudin is useful in blood storage, which is for the purpose of blood transfusion.</p></div>
Highlights
Annelida dikenal berasal dari istilah bahasa Yunani, yaitu Annulus yang artinya cincin kecil dan Oidos yang artinya bentuk.Cacing-cacing yang termasuk dalam phylum ini tubuhnya bersegmen.-segmen, tripoblastikdengan rongga tubuh sejati atau hewan selomata dan sistem pernapasannya melalui kulit.Mereka hidup di dalam tanah yang lembab, dalam laut, dan dalam air tawar
Sea and land water
Respiration using the epidermis on the entire surface of the body and takes place in diffusion
Summary
Penelitian ini dilakukan daerah penangkaran buaya Asam Kumbang dan Pantai Putra Deli, yang telah dilakukan pada bulan Desember 2019. Adapun alat yang digunakan dalam penelitian ini ialah Pinset, Kaca pembesar, Sarung tangan, dan Masker. Sedangkan bahan yang digunakan dalam penelitian ini ialah Lintah (Hirudinea medicinales), Cacing Tanah (Lumbricus terrestris), Cacing Nipah (Namalycastis sp.). Dalam penelitian ini Prosedur Kerja yang dilakukan ialah (1) diambil sampel, kemudian amati bentuk tubuhnya, (2) Digambarkan struktur tubuhnya dan dibuat deskripsi dari masing-masing sampel, (3) Dituliskan klasifikasinya masing-masing sampel secara lengkap
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