The larva of Echinus is called
Important Questions on Animal Kingdom
| Larva | Animals | ||
| A | Bipinnaria | I | Sea urchins |
| B | Auricularia | II | Brittle stars |
| C | Ophiopluteus | III | Starfishes |
| D | Doliolaria | IV | Sea lilies |
| E | Echinopluteus | V | Sea cucumbers |
The correct match is
Study the following table and pick up the correct combinations.
| S.No | Class | Common name of animals | Special feature |
| I) | Echinoidea | Sea urchins | Aristotle's lantern |
| II) | Cephalopoda | Clams | Crystalline style |
| III) | Holothuroidea | Sea cucumbers | Respiratory trees |
| IV) | Gastropoda | Squids | Torsion |
(a) Metagenesis is observed in Helminths.
(b) Echinoderms are triploblastic and coelomate animals.
(c) Round worms have organ-system level of body organization.
(d) Comb plates present in ctenophores help in digestion.
(e) Water vascular system is characteristic of Echinoderms.
Aristotle's lantern is found in echinoids
Glochidium is the larva of cephalopods
Scorpions respire with book lungs.
Parapodia are found in oligochaetes
Identify the animal given in the picture and write features of its phylum/class
Note: Since the image provided in the book was hazy and ambiguous, hence the question image is modified as below:
Identify the animal given in the picture and write features of its phylum/class
Note: Since the image provided in the book was hazy and ambiguous, hence the question image is modified as below:
Assertion: Ambulacral system plays a major role in locomotion of echinoderm.
Reason: Hydraulic pressure of fluid and contraction of the muscle of tube feet make possible movement of echinoderm.
| Animals | Morphological features | |
|---|---|---|
| (i) | Crocodile | 4-chambered heart |
| (ii) | Sea urchin | Parapodia |
| (iii) | Obelia | Metagenesis |
| (iv) | Lemur | Thecodont |
Represent the union of two sets by Venn diagram for each of the following.
is a prime number between and
is an odd number between and
