Q. No.In which of the following animals, the body is cylindrical and is composed of an anterior proboscis, a collar and a long trunk?
1.
Hemichordates
2.
Urochordates
3.
Cephalochordates
4.
Vertebrate chordates
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Which of the following is not an Arthropod characteristic?
| 1. | Jointed appendages | 2. | Periodic molting |
| 3. | Closed circulation | 4. | Articulated exoskeleton |
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Insects are not characterized by:
1. The main body segments – head, thorax and abdomen
2. Three pairs of legs
3. Two pairs of antennae
4. Excretion by Malpighian tubules
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Flame cells are excretory structures seen in:
| 1. | Platyhelminthes | 2. | Annelids |
| 3. | Arthropods | 4. | Cnidarians |
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Euplectella [Venus Flower Basket], shown in the figure below, belongs to:
| 1. | Porifera | 2. | Cnidaria |
| 3. | Ctenophora | 4. | Platyhelminthes |
Pinworm, Hookworm, and Filaria worm belong to:
| 1. | Annelida | 2. | Platyhelminthes |
| 3. | Aschelminthes | 4. | Arthropoda |
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Icthyophis is a/an:
| 1. Tunicate chordate | 2. Flightless bird |
| 3. Limbless amphibian | 4. Egg-laying mammal |
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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
| 1. | Acoelomate | 2. | Pseudocoelomate |
| 3. | Coelomate | 4. | Haemocoelomate |
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