BIO 105 EXAM ANIMAL FORM AND FUNCTION TEST QUESTIONS WITH ACCURATE
SOLUTIONS
When the body's blood glucose level rises, the pancreas secretes insulin and, as a result,
the blood glucose level declines. When the blood glucose level is low, the pancreas
secretes glucagon and, as a result, the blood glucose level rise. Such regulation of the
blood glucose level is the result of ____________.
a) negative feedback
b) catalytic feedback
c) protein-protein interactions
d) positive feedback
A
The body's automatic tendency to maintain a constant and optimal internal environment is
termed as _______.
a) homeostasis
b) balanced equilibrium
c) static equilibrium
d) physiological chance
A
In a cool environment, an ectotherm is more likely to survive an extended period of food
deprivation than would an equally sized endotherm because the ectotherm __________.
a) expends more energy per kilogram of body mass than does the endotherm
b) maintains a higher basal metabolic rate
c) invests little energy in temperature regulation
,d) has greater insulation on its body surface
C
The panting responses observed in overheated birds and mammals dissipate excess heat
by _________.
a) countercurrent exchange
b) vasoconstruction
c) acclimation
d) evaporation
D
The temperature-regulating center of vertebrate animals is located in the ________.
a) liver
b) subcutaneous layer of the skin
c) hypothalamus
d) thryoid gland
C
The thin horizontal arrows in the figure above show that the ________.
a) warmer venous blood transfers heat to the cooler arterial blood
b) warmer arterial blood transfers heat to the cooler venous blood
c) arterial blood is always cooler in the abdomen, compared to the temperature of the
venous blood in the feet of the goose
, d) warmer arterial blood can bypass the legs as needed, when the legs are too cold to
function well
B
Hummingbirds are small birds that require a regular food supply. When hummingbirds are
faced with a situation that decreases their food supply, such as a storm, which of the
following adaptations would be most useful for the bird to survive such an unpredictable
and short-term absence of food resources?
a) burrowing into soil
b) shivering
c) hibernation
d) torpor
D
The process of obtaining food is known as _______ and requires specialized feeding
mechanisms.
a) digestion
b) absorption
c) ingestion
d) excretion
C
Fat digestion yields fatty acids and glycerol, whereas protein digestion yields amino acids;
both digestive processes ________.
a) use water molecules when breaking bonds (hydrolysis)
SOLUTIONS
When the body's blood glucose level rises, the pancreas secretes insulin and, as a result,
the blood glucose level declines. When the blood glucose level is low, the pancreas
secretes glucagon and, as a result, the blood glucose level rise. Such regulation of the
blood glucose level is the result of ____________.
a) negative feedback
b) catalytic feedback
c) protein-protein interactions
d) positive feedback
A
The body's automatic tendency to maintain a constant and optimal internal environment is
termed as _______.
a) homeostasis
b) balanced equilibrium
c) static equilibrium
d) physiological chance
A
In a cool environment, an ectotherm is more likely to survive an extended period of food
deprivation than would an equally sized endotherm because the ectotherm __________.
a) expends more energy per kilogram of body mass than does the endotherm
b) maintains a higher basal metabolic rate
c) invests little energy in temperature regulation
,d) has greater insulation on its body surface
C
The panting responses observed in overheated birds and mammals dissipate excess heat
by _________.
a) countercurrent exchange
b) vasoconstruction
c) acclimation
d) evaporation
D
The temperature-regulating center of vertebrate animals is located in the ________.
a) liver
b) subcutaneous layer of the skin
c) hypothalamus
d) thryoid gland
C
The thin horizontal arrows in the figure above show that the ________.
a) warmer venous blood transfers heat to the cooler arterial blood
b) warmer arterial blood transfers heat to the cooler venous blood
c) arterial blood is always cooler in the abdomen, compared to the temperature of the
venous blood in the feet of the goose
, d) warmer arterial blood can bypass the legs as needed, when the legs are too cold to
function well
B
Hummingbirds are small birds that require a regular food supply. When hummingbirds are
faced with a situation that decreases their food supply, such as a storm, which of the
following adaptations would be most useful for the bird to survive such an unpredictable
and short-term absence of food resources?
a) burrowing into soil
b) shivering
c) hibernation
d) torpor
D
The process of obtaining food is known as _______ and requires specialized feeding
mechanisms.
a) digestion
b) absorption
c) ingestion
d) excretion
C
Fat digestion yields fatty acids and glycerol, whereas protein digestion yields amino acids;
both digestive processes ________.
a) use water molecules when breaking bonds (hydrolysis)
