BIOL150 Study Guide - Final Guide: Reproductive Isolation, Gene Pool, Ecological Speciation
23 Jan 2018
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Chapter 5: adaptation and natural selection: adaptations: traits that are structural variations that allow an organism to exploit a particular resource or to thrive in a particular environment. Types of behaviour: innate, inherited or inborn, inflexible not affected by learning or environmental conditions, triggers an automatic response, ex. A baby crying when uncomfortable: reflex (innate, from the pain receptors to the spinal cord to nerves and muscle bypasses the brain, fast, helps avoid injury, ex. Withdrawal reflex when touching a hot object: instinct (innate, inborn and inherited, inflexible independent of environmental conditions, ex. Horse and wildebeest calves walking right as they are born: condition dependent flexible, learned behavior, a response to environmental conditions, ex. Lobsters hide when there are more predators: changes in response to learning, ex. Bears teaching cub how to hunt: cost benefit, energetic cost, risk cost, opportunity cost, ex.
