Practice Questions
Ecology - Exam 1
2. Plants, unlike animals, cannot thermoregulate.
A) True
B) False
C)
D)
E)
In a terrestrial plant, water movement is as follows:
from less negative water potential to a more negative water potential.
from more negative water potential to a less negative water
potential.
from less positive water potential to a more positive water potential.
from zero water potential to a more negative water potential.
from zero water potential to a more positive water potential.
3.
A)
B)
C)
D)
10.
A)
B)
C)
D)
E)
Torpor and hibernation share all of the following except:
duration.
decreased body temperature.
decreased metabolic rate.
decreased energy demand.
none of the above
11.
A)
B)
Most water loss in terrestrial animals is due to evaporation.
True
False
12.
A)
B)
C)
D)
E)
Several studies indicate that environmental conditions dictate
plant biomass allocation; plants grown in infertile soils will
allocate more energy into _________________ biomass.
leaf
stem
root
flower
seed
13.
A)
B)
C)
D)
E)
Aquatic organisms located off the ocean floor are
benthic.
pelagic.
neritic.
littoral.
none of the above
14.
A)
B)
As altitude increases temperatures decrease, likewise as latitude
decreases temperatures decrease.
True
False
15.
A)
B)
C)
D)
E)
Which of the following levels of organization is/are correctly ordered?
population, ecosystem, landscape, individual, interaction
individuals, population, interactions, community, ecosystem
biosphere, landscape, individuals, community, interactions
ecosystem, landscape, region, interactions, populations
none of the above
1.
E)
The benthic portion of eutrophic lakes can become
___________________________.
All of the following statements are true except:
Tropical rain forests are continuously warm and wet.
Tropical dry forests have rainy and dry seasons.
In a desert, evaporation exceeds precipitation.
Taigas have moderate temperatures with occasional
droughts.
Tundras are cold and dry.
4. Estuaries are junctions between rivers and lakes.
A) True
B) False
5.
Generally, as predator size decreases prey size
_______________.
6.
Which of the following is not a considered a form of
plant defense?
A) silica
B) thorns
C) cellulose
D) phenolic compounds
E) All the above mentioned are plant defenses.
7.
Photosynthetic response curves examine
photosynthetic rates and maximum irradiance.
A) True
B) False
8.
9.
A)
B)
Which of the following statements concerning
Heinrich's study on bumble bees is incorrect?
A) Bumble bees can maintain operative thoracic
temperature in freezing temperatures.
B) Bumble bees must maintain a positive energy
budget.
C) Bumble bees are found above the arctic circle.
D) Heinrich combined field and laboratory studies.
E) Heinrich used honey production to determine the
bumble bees' energy budget.
16. ____________ are aerial plants obtaining nutrient from trapped
organic matter.
Page 1
17. The diffusion of water across a differentially permeable
membrane is called _______.
18. Aquatic organisms whose body fluids equal that of their
surroundings are
A) hyperosmotic.
B) hypoosmotic.
C) isoosmotic.
D) osmotic.
E) none of the above
19. When an organism becomes acclimated to a new
environmental situation; it will generally involve
A) physiological changes.
B) genetic changes.
C) sociological changes.
D) both physiological changes and genetic changes.
E) both genetic changes and sociological changes.
20.
A)
B)
C)
D)
E)
A biome is characterized primarily by
climate and predominate plant types.
temperature and moisture.
flora and fauna.
global weather patterns.
none of the above
21.
A)
B)
C)
D)
E)
Eutrophic lakes are characterized by
high oxygen content.
cool temperatures.
high nutrient levels.
deep and clear waters.
low biological productivity.
Answer Key
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
anaerobic
B
D
B
decreases
E
A
E
A
A
A
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
Page 2
C
B
B
B
Epiphytes
osmosis
C
A
A
C