The larva eats, but the pupa can't
Insects do not eat during their pupa stage. This is why they eat almost non-stop all throughout their larvae stage. It provides the energy they'll need during the pupa stage.
blood
Pollen and nectar
nothing
Yes. They will eat pupae, too, so if some of them pupate, remove them. Likewise, when the pupae hatch into beetles, remove those too as the beetles will also eat the pupae. :P Generally they eat everything you throw at them. I've had mealworms gnaw through their plastic container, so keep an eye on that too.
Yes, ladybugs will sometimes eat the larvae and pupae of their own kind.
everywhere in Asia
Ant larva eat the unfertilized eggs that the mother lays.
There is no plural form of pupae. Pupae is the plural form of pupa.
Yes, they move up and down the water column to eat and avoid danger.
Yes, meal worms will eat rice. They also will eat wheat and bran. Along with rice, wheat, and bran, they also feed on oats.
Pupae is a plural word, it is the plural of pupa.
i only know 2 there are the spiny case pupae and the smooth case pupae i don't know any more than that sorry