Which among the following is not correct about modifications of roots to facilitate respiration?

Which among the following is incorrect about stamens?

A scar on seed coat through which seed is attached to the fruit is called ____

Which among the following statements is incorrect about stem?

Which among the following is incorrect about racemose and cymose?

Which among the following is correct about the following structure?

Androecium in Solanaceae is _____

Which among the following is incorrect about classification of flowers?