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Sexual reproduction of a sponge Sponges do not give birth or hatch from an egg. A sponge has both sperm and egg cell. The sponge releases sperm cell. The sperm cell lands in another sponge and fertilizes the egg cell in the sponge. The sperm and egg cell produce a larva. A larva is an immature form of an animal that looks different from the adult form. The larva gets taken away by the current and lands on a hard surface and grows into a sponge. Budding of a sponge ( a form of asexual reproduction) off the sides of a sponge a sponge grows. That sponge breaks off and lands on a hard surface and is a sponge.
Wiki User
∙ 16y ago
Wiki User
∙ 12y agoNo...they bud.which is whenit grows a a section out of the body and then it breaks off. the tides takes it away and it attaches to things like reefs and rocks and grows to normal size and repeats the process itself
Wiki User
∙ 12y agoWell, if you are talking about the washing "sponge". Then obviously it would not lay eggs. If you are talking the other specie, "sponge". Yes it does.
Wiki User
∙ 14y agoTo the best of my knowledge sea sponges spawn by the moon.
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