10TH SCIENCE Structural Organisation of Animals MCQ TEST WITH ANSWERS

Structural Organisation of Animals

Time Left : 20:00

1. In leech locomotion is performed by

Anterior sucker Parapodia Setae Contraction and relaxation of muscles

2. Segments of leech are called

Metameres Proglottids Strobila All the above

3. Brain of leech lies above the

Mouth Buccal cavity Pharynx Crop

4. Body of leech has

23 segments 33 segments 38 segments 30 segments

5. Mammals are

Cold blooded Warm blooded Poikilothermic All the above

6. Animals giving birth to young ones are

Oviparous Viviparous Ovoviviparous All the above

7. Leeches have

Heart Lungs True blood vessels Excretory organs

8. Number of pairs of nephridia in leech

18 15 17 12

9. Mammary glands are modified

Perineal glands Skin glands Gastric glands Salivary glands

10. Leech may grow up to

35 cm 45 cm 25 cm 20 cm

11. Dental formula of rabbit is

2/1 0/0 3/2 3/3 2/1 0/0 2/3 3/3 2/1 0/0 3/3 3/2 1/1 0/0 2/2 3/3

12. Each kidney of rabbit is made up of

Nephrons Cortex Medulla Pelvis

13. Rabbit has ______ pairs of cranial nerves.

10 11 12 14

14. Botryoidal tissue is found in

Rabbit Earthworm Leech Ascaris

15. Leech is mainly

Carnivorous Herbivorous Sanguivorous ectoparasite Omnivorous

16. Clitellum helps in

Respiration Cocoon formation Digestion Locomotion

17. The mouth of leech is

Suction type Suctorial Triradiate Round

18. Hirudin prevents

Digestion Blood clotting Respiration Movement

19. Leech belongs to class

Polychaeta Oligochaeta Gastropoda Hirudinea

20. Leech has ______ pairs of eyes.

3 4 5 6

21. Respiration in leech takes place through

Lungs Skin Gills Trachea

22. Rabbit excretes mainly

Ammonia Urea Uric acid Creatinine

23. Heart of rabbit has

2 chambers 3 chambers 4 chambers 5 chambers

24. Canine teeth in rabbit are

Large Present only in males Absent Very sharp

25. Which is NOT a feature of annelids?

Metameric segmentation Nephridia Pseudocoelom Clitellum