Invertebrates Worksheet 1

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Institut Domènech i Montaner Student / Level / Group / Date: Reus (Baix Camp) - Seminari de Biologia Invertebrates Worksheet 1 © Joan Nievas - Last edition: 10/02/2016 Es permet la reproducció total o parcial d’aquest document, així com la distribució i la comunicació pública sempre que no sigui amb finalitats comercials i que es reconegui l'autoria del document original. Part de les activitats són creació de l’autor. Altres provenen del llibre de text dels alumnes i d’Internet. A Polynesian delicacy ‘Palolo’ is the Polynesian name of the Palola viridis which is also known as the Eunice viridis. It is a curious worm found in the coral reefs of the Pacific Ocean where it feeds on microorganisms, algae and crustaceans. When palolos reach sexual maturity, the males and females, which are about 30 cm long, produce segments full of sperm or eggs. Once a year, on just one particular night in October or November, the segments detach themselves from the bodies and swim to the surface of the water. There, they break open and release the eggs and sperm so that fertilisation can occur. The newly fertilised eggs sink to the bottom after a few days and the ‘parents’ start growing new segments again. Palolo worms are important to the Samoan people for two reasons. Firstly, the islanders eat them. Secondly, they hold a grand yearly festival to celebrate the fishing of the worms. Palolo worms are on the menu everywhere! There are dishes of palolos fried in oil, cooked with onions and coconut milk, or simply served on toast. People who have tried them say that they taste like caviar, and for the Samoans, there is nothing tastier than this yearly gift from the sea! 1. Complete the table about palolo worms with information from the text: Scientific name Habitat Food Size Uses of 2. How often do palolos reproduce? Describe their reproduction cycle. 3. Name some invertebrates that you have eaten. Were they tasty? Dossier de treball del tema 5 Els animals invertebrats Pàgina 1 4. Vocabulary Delicacy Themselves Worm Swim Coral reefs Surface Maturity Sink Detach Dishes Onion Coconut Dossier de treball del tema 5 Els animals invertebrats Pàgina 2 .

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Polychaeta) from the Sea Region of Haria Village of Central Maluku, Indonesia
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