Amla belongs to family

Identify from the following plant parts, the major contributors to human food?

$A$ : Androecium of Cucurbita is synandrous.

$R$ : Anthers as well as filaments of stamens are united throughout their whole length.

Persistent calyx forms a dry bladder like structure enclosing edible berry in

Rhizobium lives symbiotically with root nodules and fixes atmospheric nitrogen. It gives nitrogenous compound to host and inturn takes food from host. This food taken by bacterium is

Lycopersicum esculentum is the name of