| List- I (Insect parts) | List- II (Peculiarity of mouth) | ||
| A | Laccifer | 1 | Elongated gales Well developed |
| B | Musca | 2 | mandibles |
| C | Beetle | 3 | Saw- like maxillae |
| D | Moth | 4 | Pseudotrachae |
| Vestigeal mandibles |
A) A-5 B-4 C-2 D-1
B) A-3 B-4 C-5 D-1
C) A-1 B-2 C-3 D-4
D) A-3 B-4 C-2 D-1
Correct Answer: D
Solution :
Laccifer lacca or lac insect has piercing and sucking type of mouth parts in which saw like maxillae are present. Musca domestica has sponging type of mouth parts. In these pseudotrachea are found on labellum of proboscis. Beetles have biting and chewing type of mouth parts. In these mandibles are well developed which are used to masticate the food. Moths have siphoning types of mouth parts. These are well developed for feeding on nectar. The galeae of maxillae are elongated coiled and form a tube.
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