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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
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?
What is the exact difference between grades of organization and symmetry? Explain with examples.
Label the body organization of human in the following figure:
Draw a neat and labelled diagram.
Jellyfish
The following characteristics are essential for classification.
Species is the ______ unit of classification.
The symmetry exhibited in cnidarians is ______.
In Pheretima locomotion occurs with the help of ______.
Which of the following have the highest number of species in nature?
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 which of the following the notochord is present only in embryonic stages?
Body cavity is the cavity present between body wall and gut wall. In some animals the body cavity is not lined by mesoderm. Such animals are 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 a diploblastic and a triploblastic animal.
What is the relationship between germinal layers and the formation of body cavity in case of coelomate, acoelomates and pseudocoelomates?
