Question

I am a tube like structure, which forms pyramids and calyces, that open
into pelvis, which leads into ureter. Who am I?​

Answer 1

Answer:

The stigma is the sticky knob at the top of the pistil. It is attached to the long, tubelike structure called the style. The style leads to the ovary that contains the female egg cells called ovules. The male parts are called stamens and usually surround the pistil.