#### Structural Organisation of Animals Model Questions

10th Standard EM

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Science

Time : 01:00:00 Hrs
Total Marks : 50
5 x 1 = 5
1. Mammals are ______________ animals.

(a)

Cold blooded

(b)

Warm blooded

(c)

Poikilothermic

(d)

All the above

2. The animals which give birth to young ones are

(a)

Oviparous

(b)

Viviparous

(c)

Ovoviviparous

(d)

All the above

3. In leeches sperms are stored in

(a)

epididymis

(b)

vas deferens

(c)

testis

(d)

ejaculatory duct

4. Dental formula of rabbit is______

(a)

$\cfrac { 2033 }{ 1023 }$

(b)

$\cfrac { 2003 }{ 1003 }$

(c)

$\cfrac { 2030 }{ 1020 }$

(d)

$\cfrac { 2023 }{ 1220 }$

5. Egg cells of Rabbit are released in_________

(a)

uterus

(b)

vagina

(c)

fallopian tube

(d)

ovary

6. 4 x 1 = 4
7. In leech the walls of the buccal cavity bear_________ jaws

()

three

8. Excretion in leech is brought about by__________

()

nephridia

9. The thoracic and abdominal cavity of rabbit is separated by_______

()

diaphragm

10. The enlarged anterior part of the Trachea or wind pipe is_________

()

Larynx or Voice box

11. 5 x 1 = 5
12. Hirudin

13. (1)

Egg

14. Jaws

15. (2)

Intestine

16. Digested blood

17. (3)

Protein

18. Fallopian tube

19. (4)

Papillae

20. Ovary

21. (5)

Follicle

5 x 2 = 10
22. How does leech respire?

23. Write the dental formula of rabbit.

24. Explain respiratory system of a rabbit

25. Write a note on female reproductive system of rabbit

26. Why does a leech die if you put some salt on it?

27. 3 x 4 = 12
28. Why are the rings of cartilages found in trachea of rabbit?

29. Describe the heart of rabbit

30. Is hirudin used in medical science

31. 2 x 7 = 14
32. How is the circulatory system designed in leech to compensate the heart structure ?

33. Shylesh has some pet animals at his home. He has few rabbits too, one day while feeding them he observed something different with the teeth. He asked his grandfather, why is it so? What would have been the explanation of his grandfather?