Secretion of silk gland comes through a small pore. This pore is situated on
Exopodite of ${2^{nd}}$ maxilla
Endopodite of ${1^{st}}$ maxilla
Prostheca of mandible
Anterior part of hypopharynx
Assertion : In case of vegetatively propagated crops, pure-line selection is not required.
Reason : Hybrid vigour is mostly used in vegetatively propagated plants.
In maize, hybrid vigour is exploited by
In an experiment freshly hatched larvae of an insect (Khapra beetle) were reared on a basal diet (complete diet without cholesterol) with increasing amounts of cholesterol. Results obtained are shown in the given graph.
The graph indicates
Pearl is secreted around the