Advertisements
Advertisements
प्रश्न
What are flame cells?
Advertisements
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?
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.
Write the correct co-relation:
Annelida: Earthworm :: Platyhelminthes: _______
Species is the ______ unit of classification.
The symmetry exhibited in cnidarians is ______.
In Pheretima locomotion occurs with the help of ______.
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?
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.
In some animal groups, the body is found divided into compartments with serial repitition of at least some organs. This characteristic feature is called ______.
Identify the phylum in which adults exhibit radial symmetry and larva exhibit bilateral symmetry.
Which group of chordates possess sucking and circular mouth without jaws?
Differentiate between open circulatory system and closed circulatory system
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 ______.
