BIO 152 - final exam ACTUAL Exam
Questions and CORRECT Answers
anatomy - CORRECT ANSWER - study of an animal's physical structure
physiology - CORRECT ANSWER - study of how the physical structures of an organism
function
antarctic ice fish - CORRECT ANSWER - lost ability to make red blood cells and
hemoglobin --> transparent
developed ability to use higher levels of dissolved oxygen found in colder water --> larger gills
and scaleless skin with unusually large capillaries (absorption) and larger heart and greater blood
volume (delivery)
adaptation - CORRECT ANSWER - trait that allows an individual to survive and
reproduce in certain environments relative to individuals without that trait
behavioral, physiological, morphological, or molecular
evolution - CORRECT ANSWER - change in gene frequencies that code for those
adaptations in a population over time
acclimation - CORRECT ANSWER - phenotypic change that occurs in a short term
change in environmental conditions
trade off - CORRECT ANSWER - constraint on an adaptation which may involve
expenditures in time, energy, or risk of predation
inescapable compromise between traits
howler monkey - CORRECT ANSWER - large hyroid for low voice or large testes for
higher sperm count
more rivals --> larger testes
, fewer rivals --> larger hyoid
two important parts of respiration - CORRECT ANSWER - absorption and delivery
homeostasis - CORRECT ANSWER - maintenance of relatively constant chemical and
physical conditions in an animal's cells, tissues, and organs
conformational homeostasis - CORRECT ANSWER - conformation to external
environment
regulatory homeostasis - CORRECT ANSWER - a physiological mechanism that adjusts
the internal state within a specific value or within tolerable limits, regardless of external
conditions
regulatory system - CORRECT ANSWER - sensor: senses aspect of internal or external
environment
integrator: evaluates sensory info and decides if response is necessary to achieve homeostasis
effector: carries out decision helps restore desired internal condition
negative feedback - CORRECT ANSWER - occurs when regulatory system makes change
in opposite direction to change in internal conditions
if body temp > set temp - CORRECT ANSWER - dilate blood vessels to increase blood
flow and heat loss
stimulate sweat glands
stimulate breathing
if body temp < set temp - CORRECT ANSWER - constrict blood vessels to decrease
blood flow and heat loss
muscle shivering generates heat
Questions and CORRECT Answers
anatomy - CORRECT ANSWER - study of an animal's physical structure
physiology - CORRECT ANSWER - study of how the physical structures of an organism
function
antarctic ice fish - CORRECT ANSWER - lost ability to make red blood cells and
hemoglobin --> transparent
developed ability to use higher levels of dissolved oxygen found in colder water --> larger gills
and scaleless skin with unusually large capillaries (absorption) and larger heart and greater blood
volume (delivery)
adaptation - CORRECT ANSWER - trait that allows an individual to survive and
reproduce in certain environments relative to individuals without that trait
behavioral, physiological, morphological, or molecular
evolution - CORRECT ANSWER - change in gene frequencies that code for those
adaptations in a population over time
acclimation - CORRECT ANSWER - phenotypic change that occurs in a short term
change in environmental conditions
trade off - CORRECT ANSWER - constraint on an adaptation which may involve
expenditures in time, energy, or risk of predation
inescapable compromise between traits
howler monkey - CORRECT ANSWER - large hyroid for low voice or large testes for
higher sperm count
more rivals --> larger testes
, fewer rivals --> larger hyoid
two important parts of respiration - CORRECT ANSWER - absorption and delivery
homeostasis - CORRECT ANSWER - maintenance of relatively constant chemical and
physical conditions in an animal's cells, tissues, and organs
conformational homeostasis - CORRECT ANSWER - conformation to external
environment
regulatory homeostasis - CORRECT ANSWER - a physiological mechanism that adjusts
the internal state within a specific value or within tolerable limits, regardless of external
conditions
regulatory system - CORRECT ANSWER - sensor: senses aspect of internal or external
environment
integrator: evaluates sensory info and decides if response is necessary to achieve homeostasis
effector: carries out decision helps restore desired internal condition
negative feedback - CORRECT ANSWER - occurs when regulatory system makes change
in opposite direction to change in internal conditions
if body temp > set temp - CORRECT ANSWER - dilate blood vessels to increase blood
flow and heat loss
stimulate sweat glands
stimulate breathing
if body temp < set temp - CORRECT ANSWER - constrict blood vessels to decrease
blood flow and heat loss
muscle shivering generates heat
