August 2021

balanogossus

Balanoglossus

Balanoglossus It is a marine water-dwelling acorn worm (Enteropneusta). Blanoglossus cannot survive in freshwater. It belongs to hemichordates. it is an “evolutionary link” between invertebrates and vertebrates. Discovered by J.F. Eschscholtz in 1825 in Mashail Island. He described it as a worm-like holothurian. Kowalewski (1865) discovered the gill – slits Read more…

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By pcsclasses, ago
UN Secretary Generals

Organs of the United Nations

Organs of the United Nations: The United Nations (UN) has six main organs. Five of them – The General Assembly, The Security Council, The Economic and Social Council, The Trusteeship Council, and the Secretariat – are based at UN headquarters in NEW YORK. The Sixth, The International Court of Justice, Read more…

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By pcsclasses, ago