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प्रश्न
Complete the following chart.
| Body cavity | Germ Layer | Phylum |
| Absent | .......... | Porifera |
| Absent | Triploblastic | .......... |
| Pseudocoelom | .......... | Aschelminthes |
| Present | .......... | Arthropoda |
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उत्तर
| Body cavity | Germ Layer | Phylum |
| Absent | Diploblastic | Porifera |
| Absent | Triploblastic | Platyhelminthes |
| Pseudocoelom | Triploblastic | Aschelminthes |
| Present | Triploblastic | Arthropoda |
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संबंधित प्रश्न
What is the difference between direct and indirect development?
Write in brief about progressive changes in animal classification.
Draw a neat and labelled diagram.
Jellyfish
The largest division of the living world is ______.
Species is the ______ unit of classification.
The symmetry exhibited in cnidarians is ______.
Which of the following have the highest number of species in nature?
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.
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.
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.
Provide appropriate technical term in the space provided.
Blood-filled cavity in arthropods ______.
Sort out the animals on the basis of their symmetry (radial or bilateral) coelenterates, ctenophores, annelids, arthropods, and echinoderms.
Complete the paragraph using proper words:
(Asymmetrical, Paramecium, Equal, imaginary, central, insects, rats, bird, three, unequal)
If body of any animal is cut through ______ axis of body, it may or may not produce two equal halves. Depending upon this property, there are different types of animal bodies. In the case of ______ body, there is no any such imaginary axis of the body through which we can get two equal halves. For example Amoeba, ______ some sponges. In radial symmetry type of body, if imaginary cut passes through central axis but any plane of body, it gives two ______ halves. For example Starfish. In case of this animal, there are five different planes passing through ______ axis of body through which we can get two equal halves. In Bilateral symmetry type of body, there is only one such imaginary axis of body through which we can get two equal halves. For example: ______ fishes, frog, birds, human, etc.
Animal with bilateral symmetry in ______.
