Transcript Chapter 2 - SCHOOLinSITES

Active Lecture Questions for
BIOLOGY, Eighth Edition
Neil Campbell & Jane Reece
Chapter 40
Basic Principles of Animal Form
and Function
Questions prepared by
Christopher Gregg,
Louisiana State University
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
The organism in which these measurements
were made is an osmo___ and a thermal___.
a) conformer; regulator
b) regulator; conformer
c) conformer; conformer
d) regulator; regulator
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
Which is the best interpretation of the data
in this graph?
a) Maia, the spider crab, is an
osmoconformer in saltwater
but is capable of
osmoregulation in freshwater.
b) Nereis, the clam worm, is an
osmoconformer in freshwater
and is capable of
osmoregulation in brackish
water.
c) Carcinus, the shore crab, is
capable of osmoregulation in
brackish water and
freshwater.
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
Which of the following is an example of a negative
feedback response?
a) As the uterus contracts, more oxytocin is released to
intensify uterine contractions.
b) Meerkats bask in the sun at the beginning of the day
but avoid it during the heat of the day.
c) Sexual stimulation leads to arousal and climax.
d) A nursing baby stimulates the release of oxytocin,
which causes letdown of milk.
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
You are a biologist studying desert animals on a
day when the temperature is 110°F. You take the
following body temperature measurements: snake
found under a rock, 87°F; mouse in a burrow,
100°F; lizard on a rock ledge, 105°F; beetle in the
leaves of a bush, 102°F. Which is most likely
endothermic?
a) snake
b) mouse
c) lizard
d) beetle
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
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
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
The naked mole rat, Heterocephalus glaber, is a
mammal that inhabits burrows with a stable
temperature of 28 to 32°C and has the following
characteristics: no fur, a poorly developed
subcutaneous fat layer, no sweat glands, and skin that
is highly permeable to water. Its 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
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
Which offers the best time to measure basal
metabolic rate?
a) prior to a human baby’s first meal of the day
b) prior to a lizard’s first 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
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
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
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
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.
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.