The movement of plant organs in response to light is called:

What causes the movement of leaves in the $Mimosa$ $pudica$ plant?

Identify the plant growth promoters and plant growth inhibitors.

Identify the incorrect pair$(s)$ from the following:

Match the following scientists with their respective contributions:
$(a)$ Maheshwari $(I)$ Pre-sowing treatment of seeds of $Phaseolus$ $aureus$ with $IAA$
$(b)$ Das $(II)$ $Avena$ curvature test
$(c)$ Went $(III)$ Work on seedless fruit in cucumber
$(d)$ Chakravarty $(IV)$ Successful culture of an ovule of $Papaver$ using $IAA$ and kinetin
Select the correct matching sequence:

The abscission layer is covered by a leaf scar which is composed of