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प्रश्न
Through which hole the animals in this phylum give out water from their body?
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उत्तर
Osculum
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संबंधित प्रश्न
Which special cells are present in the body of sponges (Porifera)?
According to the course of animal evolution, which phylum is at the lowest level?
Through which hole the animals in this phylum take water in their body?
Write a short note.
Collar cells
True (or) False. If false write the correct answer.
Classification helps to know the origin and evolution of an organism
The skeletal framework of Porifera is ______.
Comment on the aquatic and terrestrial habits of amphibians.
The skeletal framework of the phylum Porifera is made up of ______.
Tissue organization can be seen in phylum Porifera.
Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect developments are the characteristics of phylum
Match the column A with column B and choose the correct option
| Column I | Column II |
| A. Porifera | i. Canal system |
| B. Aschelminthes | ii. Water-vascular system |
| C. Annelida | iii. Muscular pharynx |
| D. Arthropoda | iv. Jointed appendages |
| E. Echinodermata | v. Metameres |
Fill up the blank spaces appropriately
| Phylum/Class | Excretory Organ | Circulatory Organ | Respiratory Organ |
| Arthropoda | Lungs/Gills/ Tracheal System | ||
| Nephridia | Closed | Skin/parapodia | |
| Metanephridia | Open | ||
| Amphibia | Closed | Lung |
Name
An animal having canal system and spicules
Sponges have special cells present on their body, they are known as ______ cells.
Name the asexual reproductive structures of Sponges.
