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प्रश्न
The symmetry exhibited in cnidarians is ______.
पर्याय
Radial
Bilateral
Pentamerous radial
Asymmetrical
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उत्तर
The symmetry exhibited in cnidarians is Radial.
संबंधित प्रश्न
If you are given a specimen, what are the steps that you would follow to classify it?
What is the difference between direct and indirect development?
Complete the following chart.
| Body cavity | Germ Layer | Phylum |
| Absent | .......... | Porifera |
| Absent | Triploblastic | .......... |
| Pseudocoelom | .......... | Aschelminthes |
| Present | .......... | Arthropoda |
Write the correct co-relation:
Annelida: Earthworm :: Platyhelminthes: _______
Label the body organization of human in the following figure:
The following characteristics are essential for classification.
The largest division of the living world is ______.
In Pheretima locomotion occurs with the help of ______.
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.
What are flame cells?
______ was a greek philosopher who classified animals.
______ is a fluid-filled body cavity.
Examine the figures of diploblastic (i) and triploblastic (ii) organization in animals given below and identify the labelled parts A to D.
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.
Provide appropriate technical term in the space provided.
Blood-filled cavity in arthropods ______.
Animal with bilateral symmetry in ______.
