Answer:
Most of the sponges do not release their eggs into the water, until they hatch. After fertilization, the zygote remains attached to the mother body and develops into larva, having cilia within its outer layer of cells. The cilia function in movement of larva and enable the larva to swim.
Thus, the correct answer is option). 'helping the larva swim out of the adult sponge.
tbh gooogle
Answer: it sounds like the lower animal is at lower risk of getting eaten. Which is why roosters are a higher animal then humans.
