Advertisements
Advertisements
प्रश्न
Sponges have special cells present on their body, they are known as ______ cells.
विकल्प
Germ
Collar
Cnidoblasts
Ectodermal cells
Advertisements
उत्तर
Sponges have special cells present on their body, they are known as Collar cells.
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
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.
The skeletal framework of the phylum Porifera is made up of ______.
Tissue organization can be seen in phylum Porifera.
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
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 the asexual reproductive structures of Sponges.
