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Science Test Space
Class 10
Structural organisation of animals
Hirudinaria granulosa (Leech)
16.
Structural organisation of leech - In general
Question:
5
m.
State whether the given statement is true or false and give justification for the same:
1
.
During breeding seasons of leech on segments 9 to 11 a temporary clitellum will develop.
true
false
Clitellum is intended to build a cocoon during the breeding season.
During breeding seasons of leech on segments 27 to 33 a temporary clitellum will develop.
2
.
Saliva of the leech contains the heparin.
false
true
Saliva of the leech contains hirudin.
Heparin is the substance that stops blood from clotting
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