OBJECTIVES OF HEXAPODA AND MYRIAPODA
Multiple Choice Questions MCQs
1. Total number of describe insects are:
i a) 650.000 (b) 750,000 (c) 850.000 (d) 950.000
2. The percentage of insects of the total species is:
(a) 40% (b) 65% (c) 75% (d) 85%
3. The number of legs in insects are:
(a) 4 (b) 3 (c) 6 (d) 1
4. The number of wings in insects are:
(a) 2 (b) 4 (c) 6 (d) 8
5. The number of segments in the thorax of insects are:
(a) 1 (b) 2 (c) 3 (4)
6. The number of segments in the abdomen of insects are:
(a) 6 (b) 10 (c) 15 (d) 16
7. Cerci are:
(a) Reproductive (b) Sensory (c) Excretory (d) none
8. The mouth part used for chewing is:
(a) Labrum (b) Mandible (c) Maxilla (d) Labium
9. The upper lip is:
(a) Maxilla (b) Labium (c) Labrum (d) Mandible
10. The lower lip is:
(a) Labrum (b) Mandible (c) Maxilla (d) Labium
11. Moths are:
(a) Ectothenns (b) Endotherms (c) Heterothenns (d) None
12. The insect which bask in the sunshine are:
(a) Ectotherms (b) Endotherms (c) Heterotherms (d) None
13. Light gathering part of ommatidium is:
(a) Lens (b) Crystalline cone (c) Retinula cells (d) Pigment cells
14. The cell structure which converts the light energy into impulse is:
(a) Lens (b) Crystalline cone (c) Retinula cells (d) Pigment cells
15. The structure which control the daily rhythm in the insects is:
(a) Ommatidium (b) Ocelli (c) Antenna (d) Maxilla
16. The excretory system of insects is composed of:
(a) Nephron (b) Nephridia (c) Malphighian (d) None
17. The excretory product in insect is:
(a) Urea (b) Uric acid (c) Ammonia (d) None
18. Juvenile hormone is secreted by:
(a) corpora allata (b) corpora cardiaca (c) prothoracic glands
19. Ecdysone is secreted by:
(a) corpora allata (b) corpora cardiaca (c) prothoracic glands
20. The pheromones involved in release of Royal jelly is:
(a) Caste-regulating (b) Aggregation (c) Alarm (d) Trailing
21. The pheromones which attract the individual towards feeding or mating site is:
(a) Caste-regulating (b) Aggregation (c) Alarm (d) Trailing
22. The pheromone which is used to warn about the danger is:
(a) Caste-regulating (b) Aggregation (c) Alarm (d) Trailing
23. The immatures produced during Hemimetabolous is:
(a) Larva (b) Nymph (c) Instar (d) naiads
24. The immatures produced during Holometabolous is:
(a) Larva (b) Nymph (c) Instar (d) naiads
25. The immatures produced during Paurometaholous is:
(a) Lana (b) Nymph (c) Instar (d) naiads
26. The caste developed form unfertilized eggs are:
(a) workers (b) Drones (c) Queen (d) Soldier
27. Reproductive females are:
(a) workers (b) Drones (c) Queen (d) Soldier
Ans
1. (b)2. (c) 3. (b) 4. (b) 5. (c) 6. (b) 7. (b) 8. (b) 9. (c) 10. (d) 11. (c)
12. ( ) 13. (b) 14. (c) 15. (b) 16. (c) 17. (b) 18. (a) 19. (c) 20. (a) 21. (b) 22. (c) 23. (I ) 24. (a) 25. (b) 26. (b) 27. (c)
Fill in the blanks
1. Animals were absent in terrestrial environments of late Silurian and early _…………………….
2. Male millipedes transfer sperm to female millipedes with _______
3. Indirect flight muscles are called _________ flight muscles.
4. The trachea opens outside through…………………….
5. All insects warm themselves by ………………. in the sun or resting on warm surfaces.
6. All insects warm themselves by basking in the sun or resting on warm suffices.
7. The corpora___ releases small amounts of juvenile hormone in immature stages.
8. The last larval instar develops a _________ .
9.Each kind of individual in an insect colony is called a _______
10. Thoracotropic hormone stimulates the prothoracic gland to secrete ___………………….
Ans
1. Devonian 2. gonopods 3. fibular 4. spiracles 5. basking
6. T 7. allata 8. cocoon 9. caste 10. ecdysone
Tru /False
1. Animals were absent in terrestrial environments of late Silurian and early Carboniferous.
2. Male millipedes transfer sperm to female millipedes with gonopods.
3. Indirect flight muscles are called fibular flight muscles.
4. The trachea opens outside through ostia.
5. The corpora allata releases small amounts olluvenile hormone in immature stages.
6. The last larval instar develops a cyst.
7. Each kind of individual in an insect colony is called a caste.
8. Thoracotropic hormone stimulates the prothoracic gland to secrete ecdysone.
9. The male usually transfer sperm into sperm receptacle of female.
Ans
1. F: Devonian 2.1 3. T 4. F: spiracles 5. T
6. F: cocoon 7 T 8. T 9. T