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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
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?
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 ______.
Identify a member of porifera
The skeletal framework of the phylum Porifera is made up of ______.
A true body cavity is located within ______.
Tissue organization can be seen in phylum Porifera.
Name the locomotory organs seen in phylum protozoa.
Given below are types of cells present in some animals. Which of the following cells can differentiate to perform different functions?
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.
