Newest Comprehensive Study
Guide – Expert Strategies,
Review of Key Quizzes, and
Practice Questions for
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cold water all year, high dissolved oxygen - Answer2 abiotic factors of kelp forests
macroalgae - AnswerKelp are __________, a convergent evolution of a plant-like
body.
specific heat - AnswerSea otters lose heat 25 times faster than air does because of
their ______ _____________.
dense, blubber - AnswerSea otters have _________ fur and no __________.
30 - AnswerSea otters must eat ____% of their body weight every day to power
metabolism/thermogenesis.
energy cannot be created or destroyed but transferred and transformed -
AnswerEnergy flows through biological systems according to the laws of
thermodynamics:
entropy/disorder - AnswerEvery energy transfer or transformation increases the
_________/______ of the universe.
cellular respiration - Answertransforms energy in organic molecules into ATP and
heat
most - AnswerChemical bonds store energy as 'potential' energy. Thus, the molecule
that has the _______- bonds will have the most energy.
,energy is released and can be captured to help other chemical reactions run -
AnswerWhat happens when chemical bonds are broken?
10% - AnswerWhat percentage of energy is assimilated?
90% - AnswerWhat percentage of energy is lost as heat or waste?
thermogenesis - Answergeneration of heat
thermoregulation - Answertemperature control
homeostasis - Answerprocess by which organisms maintain a relatively stable
internal environment
shivering, sweating - Answer2 examples of human thermoregulation
panting, vasodilation - Answer2 examples of physiological thermoregulation in heat
hibernation, vasoconstriction - Answer2 examples of physiological thermoregulation in
cold
shedding, elephant ears, jack rabbits - Answer3 examples of morphological changes
in heat
birds fluff feathers, fur, blubber - Answer3 examples of morphological changes in cold
wallowing, locating shade, burrowing, swimming - Answer4 examples of behavioral
changes in heat
basking, cuddling, burrowing, migration - Answer4 examples of behavioral changes in
cold
thermoregulator - Answeranimals maintain internal temperature
thermoregulator - Answeranimal who keeps internal environment constant
thermoconformer - Answeranimal that allows its internal environment to match its
external environment
endotherm - Answertemperature can be controlled by altering metabolic rate (all birds
and mammals)
, ectotherm - Answerbody temperature is controlled by environment or behavior, not
metabolism (all reptiles and amphibians)
they increase metabolism to influence temperature - AnswerHow do humans
thermoregulate?
thermoneutral zone - Answerthe temp range in which metabolism rate (respiration
rate) does not need to increase to maintain ideal body temperature
produce metabolic heat - AnswerThermoneutral zone: below the lower critical
temperature, the animal expend energy to _____________________.
to lose heat - AnswerThermoneutral zone: Above the upper critical temperature, the
animal must expend energy _________________ by painting or sweating.
able to live in many habitats; can operate at optimum level more often because they can
regulate their temperature - Answer2 advantages of being a thermoregulator
do not have to expend energy to alter temperature - Answer1 advantage of being a
thermoconformer
homeostasis - Answera dynamic equilibrium which is actively regulated to maintain a
variable at a constant level; acceptable range rather than a point
optimal foraging theory - AnswerViews foraging behavior as a compromise between
benefits of nutrition and costs of obtaining food.
optimal foraging theory - Answerchoose prey that maximize net energy gain; energy
gained - energy spent
prey switching - Answerswitching to the next best prey item when a preferred item
becomes rarer
prey - AnswerIn a system of predator and prey, which population is higher?
trophic level - AnswerEach step in a food chain or food web
producers - Answerthe lowest trophic level
producers, primary consumers, secondary consumers, tertiary consumers -
Answerfirst 4 levels of food chain
sunlight - Answerwhere does energy in a food web initially come from?