In ginger vegetative propagation occurs through:

Which one of the following may require pollinators,
but is genetically similar to autogamy ?

Male gemetes are flagellated in :

Vascular bundles in monocotyledons are considered
closed because:

When you hold your breath, which of the following
gas changes in blood would first lead to the urge to
breathe?

Blood pressure in the mammalian aorta is
maximum during :