Use reasoning to answer the following question. Adult sperm are capable of producing sperm and what in order to be able to reproduce?\nOptions:\n- (A) Plants growth\n- (B) reproduce\n- (C) skin cells\n- (D) female gametes\n- (E) it needs them\n- (F) kinetic energy\n- (G) estrogen\n- (H) vaginas
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Adult sponges produce eggs and sperm. Female gametes are called eggs. Adult sponges produce female gametes and sperm.
So, the answer is (D).
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