UNIT.TEST.2(LN.13)
CLASS:X MARKS :50
SUBJECT:BIOLOGY TIME:1.30 hrs
I.CHOOSE THE CORRECT ANSWER. 6X1=6
1.Pharyngeal ganglion in leech is a part of _____.
(a) Excretory system(b) Nervous system
(c) Reproductive system(d) Respiratory system.
2.The segments of leech are known as:
(a) Metameres (somites)(b) Proglottids(c) Strobila(d) All the above
3.The body of leech has _____.
(a) 23 segments(b) 33 segments(c) 38 segments(d) 30 segments.
4.In female Rabbits, these four or five structures are present on the ventral surface between the thorax and abdomen _____.(a) Nipples or Trets(b) Limbs(c) Vibrissae(d) Diaphragm.
5.The digestion of cellulose in rabbit takes place in:(a) vemiform appendix(b) colon(c) caecum(d) ileum
6.The largest portion of the Alimentary Canal in Leech is _____.(a) Mouth(b) Pharynxc) Oesophagus(d) Crop.
II.ANSWER ANY 7 OF THE FOLLOWING.7X2=14
1.How is diastema formed in rabbit?
2.Write the dental formula of the rabbit.
3.How many pairs of testes are present in leech?
4.Why are the rings of cartilages found in the trachea of a rabbit?
5.How does leech suck blood from the host?
6.How is the digestive system of rabbit suited for a herbivorous mode of feeding?
7.Write a note on Medicinal value of Leech.
8.Give the scientific name of Rabbit and Leech.
IIl.ANSWER ANY 4 OF THE FOLLOWING.4X4=16
1.How does locomotion take place in leech?
2.List out the parasitic adaptations in leech.
3.write about body wall of leech
4.write the taxonomical position of leech and rabbit.
5.Explain about female reproductive system in leech.
IV.ANSWER ANY 2 OF THE FOLLOWING.2x7=14
1.Explain the male reproductive system of the rabbit with a labelled diagram
2.How is the circulatory system designed in leech to compensate the heart structure?
3.Explain nervous system of Rabbit.
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