[Solved] What type of host immune response is needed to eliminate trypomastigotes from the blood? Why is this often not sufficient for complete eradication of the pathogen? Males: The male sex of a species, characterized by traits, reproductive roles, and secondary sexual characteristics that differ from the female sex. Selfish Herd Hypothesis: A theory suggesting that individuals can reduce their predation risk by positioning themselves within a group, thus exploiting the protection offered by the collective. Assassin Bug: A member of the Reduviidae family, known for their predatory behavior and method of injecting toxic saliva into their prey. Sleeping Cluster: A behavior observed in some animals, including naked mole rats, where individuals sleep closely together for warmth, safety, or social bonding.