Which of the following pairs is not correct?

In a hypanthodium inflorescence,the ratio of male to female flowers is ........

Which of the following statements most accurately describes the function of an inflorescence?

Zig-Zag development of the inflorescence axis is an example of:

The unit of inflorescence in grasses / gramineae $(Poaceae)$ is

Main axis continues to grow,the flowers are borne laterally in acropetal succession. This is a characteristic of which type of inflorescence?