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प्रश्न
Spongilla bears numerous pores on their body. What are those pores called?
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उत्तर
Numerous pores on the body of Spongilla are called as Ostia and Oscula.
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संबंधित प्रश्न
Identify me.
Though I am multicellular, there are no tissues in my body. What is the name of my phylum?
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 give out water from their body?
Write a short note.
Collar cells
The skeletal framework of Porifera is ______.
Comment on the aquatic and terrestrial habits of amphibians.
A true body cavity is located within ______.
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.
