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प्रश्न
Which of the following is a crustacean?
पर्याय
Prawn
Snail
Sea anemone
Hydra
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उत्तर
Prawn
संबंधित प्रश्न
What are the reasons that you can think of for the arthropods to constitute the largest group of the animal kingdom?
Write in brief about progressive changes in animal classification.
What is the exact difference between grades of organization and symmetry? Explain with examples.
Species is the ______ unit of classification.
Which of the following have the highest number of species in nature?
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.
Identify the structure that the archenteron becomes in a developing animal.
Observe the animal below and answer the following questions.
- Identify the animal.
- What type of symmetry does this animal exhibit?
- Is this animal Cephalized?
- How many germ layers does this animal have?
- How many openings does this animal’s digestive system have?
- Does this animal have neurons?
What are flame cells?
Which organism is called Friends of farmers? Why?
In which of the following the notochord is present only in embryonic stages?
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.
Identify the phylum in which adults exhibit radial symmetry and larva exhibit bilateral symmetry.
Differentiate between a diploblastic and a triploblastic animal.
Provide appropriate technical term in the space provided.
Blood-filled cavity in arthropods ______.
Differentiate between open circulatory system and closed circulatory system
Sort out the animals on the basis of their symmetry (radial or bilateral) coelenterates, ctenophores, annelids, arthropods, and echinoderms.
What is the relationship between germinal layers and the formation of body cavity in case of coelomate, acoelomates and pseudocoelomates?
