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प्रश्न
Identify me.
Though I am multicellular, there are no tissues in my body. What is the name of my phylum?
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उत्तर
The name of phyllum is Porifera.
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संबंधित प्रश्न
Answer the question by choosing correct option.
Which special cells are present in the body of sponges (Porifera)?
Spongilla bears numerous pores on their body. What are those pores called?
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
Comment on the aquatic and terrestrial habits of amphibians.
Identify a member of porifera
A true body cavity is located within ______.
Tissue organization can be seen in phylum Porifera.
Classification of phylum Porifera is primarily based on
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
