Advertisements
Advertisements
प्रश्न
Write four distinguishing characters of phylum - Echinodermata.
Advertisements
उत्तर
- Calcareous spines are present on the bodies of these animals; hence, they are called echinoderms.
- These animals are found only in the ocean.
- Their body is triploblastic, eucoelomate. And it is radially symmetrical in the adult stage. However, they show bilateral symmetry in the larval stage.
- They perform locomotion with the help of tube-feet. Tube feet are also useful for capturing prey. Some animals are sedentary.
- They have a skeleton made up of calcareous spines and/or ossicles (plates).
- These animals have a good ability to regenerate.
- These animals are mostly unisexual.
APPEARS IN
संबंधित प्रश्न
Which of the following animals can regenerate it’s broken body part?
How does locomotion occur in earthworm and starfish?
Write a short note.
Starfish
Water vascular system is found in ______.
How does locomotion take place in starfish?
Are jellyfish and starfish similar to fishes? If no justify the answer.
The locomotory organs of Echinodermata are
Match items of column (A) with items of column (B)
| (A) | (B) | ||
| (a) | Pore bearing animals | (A) | Arthropoda |
| (b) | Diploblastic | (B) | Coelenterata |
| (c) | Metameric segmentation | (C) | Porifera |
| (d) | Jointed legs | (D) | Echinodermata |
| (e) | Soft bodied animals | (E) | Mollusca |
| (f) | Spiny skinned animals | (F) | Annelida |
Mention two features of phylum Echinodermata.
The locomotion of phylum Echinodermata is affected by ______.
Analogy:
Echinodermata: ______:: Soft Bodies Animals: ______.
Which group of animals belong to the same phylum?
Read the following statements.
- Metagenesis is observed in Helminths.
- Echinoderms are triploblastic and coelomate animals.
- Round worms have an organ-system level of body organization.
- Comb plates present in ctenophores help in digestion.
- Water vascular system is characteristic of Echinoderms.
Choose the correct answer from the options given below.
Cockroach, Frog, Sparrow, Starfish, from these animals which can regenerate its broken body part?
Read the statements and answer accordingly:
Calcareous spines are present on the body. Tube feet are used for locomotion and capturing prey also.
- Identify the phylum and give one example.
