Which of the following organisms belongs to the Kingdom $Monera$?

The pelvic girdle of birds is attached to a complex structure formed by the fusion of the last thoracic,all lumbar,and the first five caudal vertebrae. This structure is called:

The depletion layer in the $p-n$ junction is caused by

If $y = 4x - 5$ is tangent to the curve $y^2 = px^3 + q$ at $(2, 3)$,then

$\cos 36^{\circ} - \cos 72^{\circ}$ is equal to

What is $Strigula$?