Reproductive differences between various members

•sea sponges are very unique in reproduction. They can reproduce asexually and sexually. They can have small buds pop off the sponge and become imbedded in the sand and start growing. But they also can send sperm from the tip of one stock to another stock where it is absorbed in to it and it then fertilizes and egg inside that stock. This egg then is ejected from the stock and is planted near the original. The apple doesn't fall far from the tree.