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प्रश्न
Which of the following is a crustacean?
विकल्प
Prawn
Snail
Sea anemone
Hydra
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उत्तर
Prawn
संबंधित प्रश्न
If you are given a specimen, what are the steps that you would follow to classify it?
How useful is the study of the nature of body cavity and coelom in the classification of animals?
What is the difference between direct and indirect development?
Write in brief about progressive changes in animal classification.
Write the correct co-relation:
Annelida: Earthworm :: Platyhelminthes: _______
Draw a neat and labelled diagram.
Jellyfish
Species is the ______ unit of classification.
The symmetry exhibited in cnidarians is ______.
Which of the following animals has a true coelom?
Lateral line sense organs occur in ______.
Match the following columns and select the correct option.
| Column – I | Column – II | ||
| (p) | Pila | (i) | Devil fish |
| (q) | Dentalium | (ii) | Chiton |
| (r) | Chaetopleura | (iii) | Apple snail |
| (s) | Octopus | (iv) | Tusk shell |
Compare Schizocoelom with enterocoelom.
Choose the term that does not belong in the following group and explain why it does not belong?
Notochord, cephalisation, dorsal nerve cord and radial symmetry.
Examine the figures of diploblastic (i) and triploblastic (ii) organization in animals given below and identify the labelled parts A to D.
In some animal groups, the body is found divided into compartments with serial repitition of at least some organs. This characteristic feature is called ______.
Match the following list of animals with their level of organisation.
| Division of Labour | Animal |
| Column I | Column II |
| A. Organ level | i. Pheretima |
| B. Cellular aggregate level | ii. Fasciola |
| C. Tissue level | ii. Spongilla |
| D. Organ system level | iv. Obelia |
Choose the correct match showing division of labour with animal example.
Body cavity is the cavity present between body wall and gut wall. In some animals the body cavity is not lined by mesoderm. Such animals are called ______.
Differentiate between a diploblastic and a triploblastic animal.
Sort out the animals on the basis of their symmetry (radial or bilateral) coelenterates, ctenophores, annelids, arthropods, and echinoderms.
