Consider the following statements: 1. Tapeworm is a hermaphrodite. 2. Round-worm has separate sexes. 3. Filaria is caused by a nematode. 4. Guinea worm is an annelid. Which of these are correct?

Evaluating the correctness of the statements about different worms: 1. Statement 1: Tapeworm (Phylum Platyhelminthes, Class Cestoda) is typically hermaphrodite, meaning each individual possesses both male and female reproductive organs. So, statement 1 is correct. 2. Statement 2: Roundworm (Phylum Nematoda, e.g., Ascaris) typically has separate sexes (dioecious), with distinct male and female individuals. So, statement 2 is correct. 3. Statement 3: Filariasis is a disease caused by parasitic worms belonging to the Filarioidea superfamily, which are types of nematodes (roundworms). So, statement 3 is correct. 4. Statement 4: Guinea worm (Dracunculus medinensis) is also a parasitic nematode (roundworm), not an annelid (segmented worm, like earthworms or leeches). So, statement 4 is incorrect. Therefore, statements I, II, and III are correct.