Diagram given below indicates

The correct answer is: Homologous organs

Homologous organs.
Homologous Organs The organs which have the same fundamental structure but are different in functions are called homologous orangs. These organs follows the same basic plan of organization during development. But in adult condition, these organs are modified to perform different function as an adaptation to the different environment. Homologous organs are the resultant of divergent evolution

Implants homologous organs may be a those of Bougainvillea or a tendril of Cucurbita, both arising in the axillary position