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Most sponges are hermaphroditic, the same individual producing eggs and sperm, but in some species the sexes are separate. The larvae are flagellated and swim about freely for a short time. After settling and attaching to a suitable substrate, the larvae develop into young sponges.
source: factmonster.com
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∙ 12y ago
Wiki User
∙ 15y agoSponges just release eggs and sperm into the water, where it combines as the water flows back and forth. They can also produce asexual "buds" that just grow out of their bodies.
Wiki User
∙ 7y agoSponges don't do much in the parental care department. They don't take care of their young at all like the mother Cobra.
Wiki User
∙ 7y agoSome invertebrates lay eggs. Others have live birth.
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