1. Torpor Sleep-like state Happens nightly or daily In attempt
to escape variations in daily temperature 2. Hibernation Sleep-like
state, greatly reduced metabolic rate and activity Over winter
Usually triggered by change in length of the day 3. Estivation
Seasonal torpor over the summer Escaping extreme summer heat
Usually digging into the soil 4. Part 2 5.
Homeostasis/Thermoregulation VideosHomeostasis
Hugshttp://www.youtube.com/watch?v=3tqjITi8S8sMagic School Bus
Episode Cold
Feethttp://www.watchcartoononline.com/the-magic-school-bus-season-2-episode-12-cold-feetFrozen
Wood Froghttp://www.youtube.com/watch?v=UvCdOXG2rPo 6. Glossary
Homeostasis: the physiological state of the body which
internalphysical and chemical conditions are kept within a range
that issuitable for life processes Homeostatic mechanism: a system
that monitors internal andexternal conditions and changes bodily
functions to maintainhomeostasis Negative Feedback: the response of
a system that acts to maintainequilibrium by compensating for any
changes made to the system Sensor: the element of a feedback system
that detects changes in theenvironment Integrator: the element of a
feedback system that compares existingconditions with ideal
conditions Set Point: the optimal value for a given variable of a
system Effector: the element (or elements) of a feedback system
that act toreturn the system to its optimal state Positive
Feedback: the response of a system that acts to increasethe effect
of any changes made to the system 7. Thermoregulation: the
regulation of internal temperature by negativefeedback mechanisms
Homeotherm : an animal that maintains a stable body
temperatureregardless of the temperature of the external
environment Poikilotherm: an animal whose body temperature caries
with, andoften matches, the temperature of the external environment
Endotherm: an animal that maintains its body temperature by
internalmechanisms Ectotherm: an animal that maintains its body
temperature byabsorbing thermal energy from the environment Thermal
acclimatization: the process by which an animal graduallyadjusts to
temperature changes in its environment Torpor: a short-term state
of reduced metabolic rate and bodytemperature that reduces the
demand for energy during the night orday Hibernation: a state of
greatly reduced metabolic rate and activitythat enables an animal
to survive the winter by reducing the demandfor energy when food is
unavailable Estivation : a state of torpor that enables an animal
to survive thesummer by reducing the demand for energy
