Q. No.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
1. The main body segments – head, thorax and abdomen
2. Three pairs of legs
3. Two pairs of antennae
4. Excretion by Malpighian tubules
Flame cells are excretory structures seen in:
| 1. | Platyhelminthes | 2. | Annelids |
| 3. | Arthropods | 4. | Cnidarians |
Development takes place through a trochophore or veliger larva in:
1. Annelida
2. Mollusca
3. Arthropoda
4. Echinodermata
In chordates, the tail is:
| 1. | Post anal and segmented |
| 2. | Post anal and unsegmented |
| 3. | Pre anal and segmented |
| 4. | Pre anal and unsegmented |
The most important reason for the fact that reptiles were the first animals to be successful on land is:
| 1. | Internal fertilization |
| 2. | Skin covered with scales |
| 3. | Partially divided ventricles |
| 4. | Presence of amnion |
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 |
Which of the following is not a character of deuterostomes?
1. Radial cleavage
2. Schizocoelous coelom
3. Indeterminate cleavage
4. Blastopore forms anus
Icthyophis is a/an:
| 1. Tunicate chordate | 2. Flightless bird |
| 3. Limbless amphibian | 4. Egg-laying mammal |
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