Class XI

Both WBC and RBC are formed in the
  1. Both WBC and RBC are formed in the
  2. Thymus
  3. Thyroid
  4. Adrenal
In earthworm, the stomach is present in
  1. 5 – 7 segments
  2. 8 – 10 segments
  3. 9 – 14 segments
  4. 15 – 26 segments
The mouth part of cockroach which is compared to tongue is
  1. Labium
  2. Mandible
  3. Hypopharynx
  4. Maxillae
Blood plasma is pale yellow in colour due to
  1. Platelets
  2. WBC
  3. Phospholipids
  4. Bilirubin.
Largest single mass of lymphatic tissue in the body isMatch the following and choose the correct answer with reference to cockroach: Column I a) Bundles of sperm b) External genitalia c) Chain of developing ova d) Opening of ejaculatory duct Column II i) Ovarioles ii) Gonopore iii) Phallomere iv) Spermatophore
  1. a) –iv), b) – iii), c) – i), d) – ii)
  2. a) –iv), b) – ii), c) – iii), d) – i)
  3. a) –iv), b) – i), c) – ii), d) – iii)
  4. a) –iv), b) – ii), c) – i), d) – iii
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