[Solved] Is haplodiploidy a necessary condition for the evolution of eusociality? A) Yes; true eusociality is found only in the hymenoptera, all of which are haplodiploid. B) Yes; eusociality can only evolve when indirect fitness is as high as occurs between haplodiploid sisters. C) No; eusociality is also found in organisms that do not have a haplodiploid genetic system, such as naked mole rats. D) No; eusociality has evolved in every major animal lineage. Chronic Disease: Long-lasting medical conditions that are generally progressive and may require ongoing treatment and management. Body Fat: The portion of the human body composed of fat tissue, which serves as energy storage, insulation, and protection of organs. Crystallized Intelligence: Those types of intellectual ability that reflect accumulated learning. Vocabulary and general information are examples. Some developmental psychologists think crystallized intelligence increases with age, while fluid intelligence declines. Accumulation: The gradual gathering or collecting of items, substances, or wealth over time.