Final answer:
Porifera asexual reproduction modes are budding, binary fission, and gemmule formation.
Explanation:
Budding, binary fission, and gemmule formation are the modes of asexual reproduction in Porifera. Budding involves an outgrowth from the parent that eventually detaches, binary fission is when a cell splits into two, and gemmule formation is the production of environmentally resistant structures by adult sponges.
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