In which of the following groups do all members exhibit a larval stage in their life cycle?

Choose the correct option for the following statements:
$(i)$ Birds are oviparous / viviparous animals showing internal fertilization.
$(ii)$ In cartilaginous fishes,gill slits are without operculum / with operculum.

Match the following columns:

Column-$I$	Column-$II$
$(1)$ Reptilia	$(A)$ Jellyfish
$(2)$ Porifera	$(B)$ Leech
$(3)$ Coelenterata	$(C)$ Hyalonema
$(4)$ Annelida	$(D)$ Crocodile

Which of the following organisms exhibits body segmentation?

Which of the following groups contains one or more animals that are not pseudocoelomate?

Column $-I$ contains the organs of locomotion and Column $-II$ contains the phyla in which they are found. Select the correct combination of the two columns:

Column $-I$	Column $-II$
$(A)$ Pseudopodia	$(i)$ Mollusca
$(B)$ Parapodia	$(ii)$ Chondrichthyes
$(C)$ Muscular foot	$(iii)$ Protozoa
$(D)$ Fins	$(iv)$ Annelida