1
Created by Boundless
What happens when cells increase in size?
A
The surface area for diffusion increases; reaching the cell
center is effective.
B
The surface area for diffusion decreases; reaching the cell
center is effective.
C
The surface area for diffusion increases; reaching the cell
center is ineffective.
D
The surface area for diffusion decreases; reaching the cell
center is ineffective.
2
Created by Boundless
What term describes the condition of a desert mouse that lowers its metabolic rate
and “sleeps” during the hot day?
A
estivation
B
hibermation
C
basal metabolic rate
D
normal sleep pattern
3
Created by Boundless
Which of the following attributes can be used to differentiate endothermic animals
from ectothermic animals?
A
whether the animal is active and its size
B
whether the animal has insulation and the consistency of
body temperature
C
whether the animal is terrestrial and its basal metabolic rate
D
whether the animal is sedentary and what it eats
4
Created by Boundless
Which of the following animals would have the greatest energy expenditure?
A
small, active endothermic animal that lives in a cold region
B
large, sedentary ectothermic animal that lives in a hot
region
C
large, active endothermic animal that lives in a cold region
D
small, sedentary ectothermic animal that lives in a hot
region
5
Created by Boundless
Body shape of aquatic animals are constrained by ____________ while terrestrial
animals are constrained by ____________?
6
A
forces of drag; gravity
B
gravity; forces of drag
C
temperature; forces of drag
D
muscle mass; gravity
Created by Boundless
What is the major limitation to size in animals with exoskeletons?
A
The exoskeleton thickness must increase significantly to
accommodate an increase in weight.
B
The exoskeleton grows much more slowly than the animal
does.
C
Molting inhibits growth by using up the organism's
available energy.
D
The apodemes can only attach muscles that are small in
size.
7
Created by Boundless
Which of the following describes the midsagittal plane?
A
divides an animal into equal right and left portions
B
divides an animal into unequal right and left portions
C
divides an animal into unequal upper and lower portions
D
divides an animal into equal upper and lower portions
8
Created by Boundless
Which of the following describes the pleural cavity?
A
located in the thoracic cavity
B
located in the abdominopelvic cavity
C
surrounds the heart
D
surrounds the spinal cord
9
Created by Boundless
What is the most common body plan of aquatic animals that attach themselves to
a base?
A
symmetrical
B
radial
C
bilateral
D
asymmetrical
10
Created by Boundless
How do organisms adapt their body plans to enhance survival and reproduction?
A
through environment pressures
B
all of these answers
C
through symmetry
D
through segmentation of body parts
11
Created by Boundless
What type of epithelial tissue is composed of many layers of cells that are taller
than they are wide?
A
Squamous
B
Simple cuboidal
C
Columnar
D
12
Transitional
Created by Boundless
What type of tissue might be found surrounding the stomach, holding it in place
within the visceral cavity?
A
Hyaline cartilage
B
Loose connective tissue
C
Elastic cartilage
D
Fibrous connective tissue
13
Created by Boundless
What type of cell is responsible for the release of calcium into the blood?
A
osteoblast
B
osteon
C
osteoclast
D
osteocyte
14
Created by Boundless
Why is blood considered a connective tissue?
A
it has a matrix
B
it contains more than one type of cell
C
it is made up of fibroblasts
D
it contains anucleate cells
15
Created by Boundless
What type of cell in the blood is responsible for carrying oxygen?
A
platelets
B
erythrocytes
C
leukocytes
D
thrombocytes
16
Created by Boundless
What type of muscle cell is not striated?
17
A
skeletal
B
smooth
C
multinucleate
D
cardiac
Created by Boundless
Which of the following pairs of terms are part of a neuron?
A
astrocytes and oligodendrocytes
B
dendrites and astrocytes
C
cell bodies and oligodendrocytes
D
axon and dendrites
18
Created by Boundless
An animal that exhibits the ability to fluctuate internal body temperature according
to the external environment would be classified as a:
A
endotherm
B
poikilotherm
C
homeotherm
D
heterotherm
19
Created by Boundless
Which of the following is a behavioral adaptation employed when an endothermic
animal becomes too cold?
A
The animal will undergo vasoconstriction.
B
The animal will undergo vasodilation.
C
The animal will utilize group activity to stay warm.
D
The animal will shut down the countercurrent heat
exchange to ensure heat remains in the body.
20
Created by Boundless
A change in the levels of glucose after a meal would result in activation of a
receptor that would:
A
directly change the set point to accommodate the increase
in glucose
B
send a signal to the command center and cause the
effector to store the excess glucose
C
send a signal to the command center that sends a signal
back to the receptor
D
send a signal directly to the effector and breakdown the
excess glucose
21
Created by Boundless
Which of the following is an example of a positive feedback loop?
A
the production of parathyroid hormone when calcium levels
decrease
B
the decreased production of oxytocin during childbirth
C
the release of glucagon from the pancreas to increase
glucose levels
D
the formation of a blood clot upon injury
22
Created by Boundless
The ability to increase production of red blood cells upon changes in altitude, as a
response to lower oxygen levels, can be classified as:
A
acclimatization
B
a negative feedback loop
C
a positive feedback loop
D
alteration of the set point
23
Created by Boundless
An animal is exposed to a slight increase in temperature. Blood samples are taken
and analyzed for expression of a specific protein. The expression level is
compared to a blood sample taken prior to the temperature change. One would
find:
A
a large increase in expression of the protein with loss of
function
B
a minor increase in expression of the protein with no affect
on function
C
a slight decrease in expression of the protein with no affect
on function
D
a large decrease in expression of the protein with loss of
function