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प्रश्न
What are flame cells?
उत्तर
Flame cells are the specialized excretory cells in flat worms. They help in excretion and osmoregulation.
संबंधित प्रश्न
Distinguish between intracellular and extracellular digestion.
What is the difference between direct and indirect development?
Label the body organization of human in the following figure:
Species is the ______ unit of classification.
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.
______ was a greek philosopher who classified animals.
Which organism is called Friends of farmers? Why?
In which of the following the notochord is present only in embryonic stages?
Examine the figures of diploblastic (i) and triploblastic (ii) organization in animals given below and identify the labelled parts A to D.
Which group of chordates possess sucking and circular mouth without jaws?
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?
Animal with bilateral symmetry in ______.
