Step 1: What the table is about. This match question links excretory organs of invertebrates with the animal group and an example. We must find the two combinations that are fully correct.
Step 2: Coxal glands combination. Coxal glands are the excretory organs of arachnids, like scorpions. Palamnaeus is a scorpion, so the pairing of coxal glands with this arachnid is correct. This is combination I.
Step 3: Malpighian tubules combination. Insects get rid of wastes using Malpighian tubules. Musca, the housefly, is an insect, so this pairing is correct too. This is combination III.
Step 4: Why green glands combination is wrong. Green glands, also called antennal glands, belong to crustaceans like prawns, not to Chilopoda (centipedes). So this combination is false.
Step 5: Why the Limulus combination is wrong. Limulus, the king crab, is a chelicerate and does not use metanephridia for excretion. So that pairing is also false.
Step 6: Pick the answer. The two correct combinations are I and III, which is option 2.
Step 7: Conclusion. Therefore the correct answer is "I, III". \[ \boxed{\text{I, III}} \]
