Advertisements
Advertisements
Question
Identify the structure that the archenteron becomes in a developing animal.
Advertisements
Solution
The archenteron becomes the cavity of the digestive tract.
RELATED QUESTIONS
How useful is the study of the nature of body cavity and coelom in the classification of animals?
Write the correct co-relation:
Annelida: Earthworm :: Platyhelminthes: _______
Label the body organization of human in the following figure:

Draw a neat and labelled diagram.
Jellyfish
The largest division of the living world is ______.
The symmetry exhibited in cnidarians is ______.
Which of the following animals has a true coelom?
In Pheretima locomotion occurs with the help of ______.
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 |
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.
What are flame cells?
______ is a fluid-filled body cavity.
In which of the following the notochord is present only in embryonic stages?
In some animal groups, the body is found divided into compartments with serial repitition of at least some organs. This characteristic feature is called ______.
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.
Differentiate between a diploblastic and a triploblastic animal.
Provide appropriate technical term in the space provided.
Blood-filled cavity in arthropods ______.
Differentiate between open circulatory system and closed circulatory system
