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प्रश्न
According to the course of animal evolution, which phylum is at the lowest level?
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उत्तर
Phylum Porifera
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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?
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?
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.
Identify a member of porifera
A true body cavity is located within ______.
Name the locomotory organs seen in phylum protozoa.
Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect developments are the characteristics of phylum
Classification of phylum Porifera is primarily based on
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 the asexual reproductive structures of Sponges.
