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                                                   Porifreans

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                                                   Porifreans

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                                 Are they invertebrates  or vertebrates?

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                                 Are they invertebrates  or vertebrates?

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                             do sponges have subgroups??

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                             do sponges have subgroups??

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                                                   Habitat

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                                                   Habitat

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They can be found on numerous surfaces:depths and water environment. Around the Earth.
Approximately 150 species are currently a freshwater animals.

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                                         Structure of their body

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                                         Structure of their body

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Sponges have cellular-level,.

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                                           Digestive system

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                                           Digestive system

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Sponges dont have digestive system.They absorb water.
1 Inside the body of a sponge specialised cells trap food particles and digest them in the cytoplasm.
2 Finally the water leaves the animal

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In many animals that live in water or in very moist land environments,gas exchange is carried out through the surface of their bodies.

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                                              Circulatory system

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                                              Circulatory system

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Sponges do not need circulatory system because there cells are in direct contact with the external environment (water),so they exchange substances with the environment directly.

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                                               Excretion system

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                                               Excretion system

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Simple animals like sponges do not have specialised parts for carrying out excretion.They eliminate wastes through the skin

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                                                Scientific name

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                                                Scientific name

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The Scientific name of sponges are Porifreans

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                                                 Super power 

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                                                 Super power 

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The humans are using the chemicals  of sponges to cure cancer (HIV.

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                                               Reproduction system

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                                               Reproduction system

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Sponges have asexual reproduction,there reproduction is budding.Budding consists in the formation of buds,wich are small lumps that grow on the surface of the parent organism.Sometimes buds detach from the parent organism and form an independent individual and form a colony

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                   Nervous system,receptors,coordination,effectors

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                   Nervous system,receptors,coordination,effectors

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They don't have muscles, a nervous system, or a circulatory system. Their walls are lined with many small pores called ostia that allow water flow into the sponges.Sponges are able to get microorganisms such as algae and bacteria for food through openings.

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                                              Conservation status

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                                              Conservation status

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There no  endangered but a lot of them are dying because of contamination in water.

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                                              Sources of information

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                                              Sources of information

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http://www.nhm.ac.uk/discover/can-sponges-cure-cancer.html
https://www.youtube.com/watch?v=m8a0oNsDEx8&t=66s
https://www.youtube.com/user/BlueWorldTV
https://en.wikipedia.org/wiki/Sponge
https://www.britannica.com/animal/sponge-animal
http://tolweb.org/treehouses/?treehouse_id=4291
The book

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                                                     Thanks for waching

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                                                     Thanks for waching