sometimes, when they see a full moon
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∙ 12y agoSea urchins reproduce sexually by releasing eggs and sperm into the water. Fertilization occurs externally, and the larvae develop in the water before settling on the ocean floor and growing into adults.
Sea urchins generally have separate sexes and spawn seasonally every year. Eggs and sperm are usually released to the water column where fertilisation occurs.
They reproduce asexually and sexually.
They reproduce Asexually
Sea Stars reproduce both asexually and sexually.
Sponges can reproduce sexually or asexually
by mating with another GIANT red sea urchin!
Sea urchins reproduce sexually, with separate male and female individuals releasing eggs and sperm into the water for fertilization to occur externally. They can also reproduce asexually through a process called fragmentation, where a piece of the sea urchin's body can regenerate into a new individual.
Sea urchins reproduce by releasing eggs and sperm into the water, where external fertilization takes place. Once fertilized, the eggs develop into larvae that eventually settle and grow into adult sea urchins. Some species of sea urchins can also reproduce by asexual means, such as splitting or budding.
The sea archin releses sperm and eggs in to the water the eggs then get firtilised
They reproduce asexually
they reproduce asexually through regeneration