Advertisements
Advertisements
प्रश्न
According to the course of animal evolution, which phylum is at the lowest level?
उत्तर
Phylum Porifera
APPEARS IN
संबंधित प्रश्न
Identify me.
Though I am multicellular, there are no tissues in my body. What is the name of my phylum?
Spongilla bears numerous pores on their body. What are those pores called?
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.
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.
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 |
Sponges have special cells present on their body, they are known as ______ cells.
