Animal Kingdom

Parrot is a bird (class Aves); platypus (a prototherian) and kangaroo (a metatherian) are mammals.
Only birds and mammals are homoiothermous (warm-blooded): they maintain a constant body temperature irrespective of the temperature of the surroundings.
So homoiothermy is common to all three.
Oviparity is not common: the parrot and the platypus lay eggs, but the kangaroo is viviparous and gives birth to immature young that complete their development in the pouch.
Toothless jaws are found in the parrot (beak) and the adult platypus, but the kangaroo has teeth.
A functional tail is not a feature shared in the same way by all three.
So the common feature is homoiothermy.

Pearls are produced by the pearl oyster Pinctada (for example Pinctada vulgaris), a bivalve mollusc, which deposits layers of nacre around a foreign particle.
Pila globosa is the apple snail, a gastropod mollusc; it does not produce pearls.
So the pair Pila globosa - pearl is mismatched.
Apis indica is the Indian honey bee, which produces honey.
Kerria lacca (Laccifer lacca) is the lac insect, which secretes lac.
Bombyx mori is the mulberry silkworm, which produces silk.
These three pairs are correctly matched.