What organ systems are developed in flatworms?
| January 9, 2021 | education
In the process of evolution, real tissues, organs and organ systems first appeared in Flatworms, a typical representative of which is the white planarian.
Their organ systems:
– musculoskeletal, formed by skin and muscles;
– digestive (mouth – pharynx – intestines);
– excretory, consists of excretory tubes that open with pores in the skin;
– nervous (2 nerve nodes, 2 nerve trunks and transverse nerves);
– sexual (hermaphrodites, since in one body there are both testes and ovaries).
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