Sponges
Step-by-step explanation:
Sponges have larvae that are motile and move via the motion of cilia
- Sponges are simple aquatic invertebrates and belong to phylum porifera of kingdom animalia.
- Sponges have numerous pores called ostia on the surface.
- Asexual reproduction occurs through budding.
- Sexual reproduction in sponges produces larva called Stomoblastula.
- The stomoblastula attaches on the nurse cells and feeds on them for few days.
- As soon as it develops into an amphiblastula, it turns inside out bringing out cilia which helps it to swim in water.