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प्रश्न
Identify the structure that the archenteron becomes in a developing animal.
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उत्तर
The archenteron becomes the cavity of the digestive tract.
संबंधित प्रश्न
How useful is the study of the nature of body cavity and coelom in the classification of animals?
Distinguish between intracellular and extracellular digestion.
What are the reasons that you can think of for the arthropods to constitute the largest group of the animal kingdom?
Complete the following chart.
| Body cavity | Germ Layer | Phylum |
| Absent | .......... | Porifera |
| Absent | Triploblastic | .......... |
| Pseudocoelom | .......... | Aschelminthes |
| Present | .......... | Arthropoda |
Label the body organization of human in the following figure:
The following characteristics are essential for classification.
Which of the following is a crustacean?
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.
In which of the following the notochord is present only in embryonic stages?
Identify the phylum in which adults exhibit radial symmetry and larva exhibit bilateral symmetry.
Provide appropriate technical term in the space provided.
Blood-filled cavity in arthropods ______.
