Assignment 7 and 8 key - Assignments 7 and 8 Use the...

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Assignments 7 and 8 Use the assigned readings in your texts (Chapters 5-7) and your lecture notes to address the following topics: Define the following terms: Bergman’s Rule : The principle that an animal’s size is heat -related; smaller bodies are adapted to hot environments, and larger bodies are adapted to cold environments. Allen’s Rule : The principle that an animal’s limb lengths are heat -related; limbs are longer in hot environments and shorter in cold environments. Developmental adaptation: biological changes in response to environmental stress that occur at the level of the individual during growth and development. The capacity for the adaptation is inherited, but the adaptation itself is not. The adaptation is not reversible. (from lecture) Acclimatization: biological changes in response to environmental stress that occur in an individual at any time. These changes are not inheritable and are reversible. (from lecture) Functional adaptation: biological changes that occur during an individual’s lifetime, increasing the individual’s fitness in the given environment. (from lecture: can be genetic, developmental, or acclimatization) Cultural Adaptation: changes in response to environmental stress that are not biological or physiological that are reversible and occur at both the individual and the group level. (from lecture) Vasodilation: The increase in blood vessel s’ diameter; it can occur in response to hot temperatures. Vasoconstriction: The decrease in blood vessels’ dia meter; it can occur in response to cold temperatures. Hypothermia: A condition in which an organism’s body temperature falls below the normal range, which may lead to the loss of proper body functions and, eventually, death. Melanin: A brown pigment that determines the darkness or lightness of a human’s skin color due to its concentration in the skin. Hypoxia: Less than usual sea-level amount of oxygen in the air or in the body. Diurnal: active during daylight hours; Most monkeys are diurnal Tooth comb: incisor morphology observed in some Prosimians where lower incisors partially fuse to form a comb like structure for grooming Prehensile tail: grasping tail possessed by some species of New World Monkeys (Platyrhinnes) Polygynous: mating system consisting of one male with more than one female
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  • Spring '14
  • AnneYentsch
  • Anthropology, UV light, short term responses, Functional Adaptations, Initial short-term responses, long-term functional adaptations

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