Transcript ch 40 clicker questions

CLICKER QUESTIONS
For CAMPBELL BIOLOGY, NINTH EDITION
Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Chapter 40
Basic Principles of Animal Form
Click to edit Master title style
and Function
Click to edit Master subtitle style
Questions prepared by
Christopher Gregg
Louisiana State University
John Lepri
University of North Carolina, Greensboro
© 2011 Pearson Education, Inc.
These data show that the organism tested can
be categorized as an osmo ___ and a thermal
___.
a) Conformer; regulator
b) regulator; conformer
c) conformer; conformer
d) regulator; regulator
© 2011 Pearson Education, Inc.
If thermoregulation is considered to be a secondary
function of the large ears of jackrabbits, then the
primary function of the ears is
a) to optimize nutrient intake through the thin, permeable surfaces on the
ears.
b) to protect against pathogens by having a thick, waxy surface on the
ears.
c) to protect offspring from bright sunlight by positioning of the ears to
cast the maximum shadows.
d) to detect predators by using the large size and flexible positioning of
the external ears to channel sound waves into the ear canal.
e) to alter the rate of gas exchange, based on the adjustable radius of
the ears’ blood vessels.
© 2011 Pearson Education, Inc.
Which is the best interpretation of these data?
a) Maia, the spider crab, is an
osmoconformer in salt water but is
capable of precise osmoregulation in
fresh water.
b) Nereis, the clam worm, is an
osmoconformer in fresh water and is
capable of precise osmoregulation in
brackish water.
c) Carcinus, the shore crab, is capable
of precise osmoregulation in brackish
water and fresh water.
d) All three crabs are precise
osmoregulators in all three
environments.
© 2011 Pearson Education, Inc.
Which of the following is an example of a
negative feedback response?
a) As the uterus contracts in labor and delivery, more
oxytocin is released to intensify uterine contractions.
b) Meerkats bask in the sun in the cool mornings but
avoid the sun during the heat of the day.
c) Sexual stimulation leads to sexual arousal.
d) A nursing baby stimulates the release of oxytocin,
which causes letdown of milk.
© 2011 Pearson Education, Inc.
You measure body temperatures of desert animals at
7 AM and again at 2 PM. Your data are these:
7 AM
2 PM
snake
77°F
87°F
mouse 100°F
99°F
lizard
80°F
105°F
beetle
72°F
102°F
Which animal is most likely endothermic?
a) snake
b) mouse
c) lizard
d) beetle
© 2011 Pearson Education, Inc.
The sea star Porcellanaster ceruleus is found
exclusively in the deep sea where the water
temperature is around 4°C year round. How
would you classify this organism?
a) Endothermic homeotherm
b) Endothermic poikilotherm
c) Ectothermic homeotherm
d) Ectothermic poikilotherm
© 2011 Pearson Education, Inc.
Naked mole rats, Heterocephalus glaber, are
mammals that inhabit burrows with a stable
temperature of 28 to 32°C. The rats have no fur, a
poorly developed subcutaneous fat layer, no sweat
glands, and skin that is highly permeable to water.
Body temperature stays only slightly above ambient
(0.5°C) over a range of 12 to 37°C. How would you
classify this mammal?
a) Endothermic homeotherm
b) Ectothermic poikilotherm
c) Ectothermic homeotherm
d) Endothermic poikilotherm
© 2011 Pearson Education, Inc.
The best time to measure basal metabolic
rate is
a) prior to a human baby’s first meal of the day.
b) just after a lizard’s third meal of the day.
c) while an adult human is watching TV after a meal.
d) just after a cricket has escaped from a bird.
© 2011 Pearson Education, Inc.
A mouse and lizard with the same body mass
were placed in experimental chambers and
their metabolic rates measured over a range of
temperatures. From the data shown in the
graph, which were collected from the mouse
and which from the lizard?
a) A–lizard; B–mouse
b) A–mouse; B–lizard
c) can’t tell
© 2011 Pearson Education, Inc.
The temperature difference between arterial
and venous blood near the goose’s body
a) allows the goose to lose
maximum heat to the
environment.
b) allows the goose to minimize
heat loss to the environment.
c) allows the goose’s legs to
remain cool in freezing water.
d) is minimized by the dilation of
capillaries in the goose’s feet.
© 2011 Pearson Education, Inc.