MCQ
Choose the correct statement for Periplaneta americana
- AIt has $6$ muscular hearts
- BIt has $10$ thoracic segments
- CAnal style is present in both male and female
- ✓It is nocturnal and present in damp places
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$R-CCK$ acts on pancreas and stimulates the secretion of pancreatic enzymes.
Assertion $A$: A flower is defined as modified shoot wherein the shoot apical meristem changes to floral meristem.
Reason $R$: Internode of the shoot gets condensed to produce different floral appendages laterally at successive node instead of leaves.
In the light of the above statements, choose the correct answer from the options given below :