Question

Sponges ________. Sponges ________. have feeding cells called dinoflagellates are the simplest diploblastic animals have larvae that are motile and move via the motion of cilia have a nerve net but not a central nervous system

Answer 1

Sponges

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.