Exam 1.1 Flashcards
(30 cards)
- If I wanted to study the effects of supplemental watering on cone production in a population of pine trees, it would be best to assign individual trees to the watering treatment vs. the control condition:
at random
- To be able to conduct a statistical test that would compare the average size of eyes between 2 species, in addition to the 2 averages you would require information about…
the amount of variation around the 2 eye-size averages
- In ecological scaling terminology, the spatial _____ of a study is the rang of scales over which the study’s full collection..
extent
- Major air currents are deflected to the _______ from their north-south (or south-north) vector in the northern hemisphere and to the _____ in the southern hemisphere.
right, left
- True or False: For any given focal species, all of its biotic interactions with other species combined together cause a reduction in the focal species’ realized niche relative to its fundamental niche.
false
- Which of the following involves genetic change:
adaptive evolution of a population
- Averaging across longitudes and seasons, what is the prevailing wind direction at 42 degrees south latitude?
towards SW
- In the equations for the energy balance of organisms, would the sign for convective heat be positive or negative if the organism’s temperature were higher than the temperature of the surrounding air:
negative
- If I were to pout salt into a pool of freshwater, the osmotic potential of that pool would:
decrease
- If I were to pour salt into a pool of freshwater, the pressure potential of that pool would:
remain the same
- If I were to pour salt into a pool of freshwater, the water potential of that pool would:
decrease
In their photosynthetic chemistry, C3 plants discriminate against the heavy stable isotope of carbon (ie. 13C) __________ C4 plants do
more than
for a given resource, an individual generalist would have ______ niche breath along that resource axis relative to an individual specialist
a broader
- as a temperature decreases within an organism’s thermoneutral zone, the organism’s metabolic rate _________.
remains constant
Which equality/inequality symbol completes the statements for the case in which a power function’s dependent value (e.g. y) increases proportiaonately faster than the independent variable
>
Surface area scales to the ____ power of volume for cubes and spheres
2/3
For a given size of fish, which of the following expends more energy to actively secrete salt out of its gills and into the water that surrounds it?
marine fish in salt water
If all other environmental characteristics are equivalent, in which plant would you expect the largest root:shoot ratio?
a plant growing in full sun
- Chlorophyll plays its main functional role during the _______ reactions.
light dependent
- In which photosynthetic pathway is there a physical separation of CO2 uptake and the calvin cycle?
C4
Which equality/inequality symbol fills in the blank to best complete the statement: above the light-compensation point, CO2 uptake ______ CO2 losses through respiration
>
- If herbivorous insect species A specializes on C3 plants and herbivorous insect species B specializes on C4 plants, which insect would be expected to have the larger ratio of 13C to 12C?
insect B
- In an adaptive radiation, phenotypic ___________ is especially common.
divergence
- True or false: if evolution has occurred in a population, then genetic change must have occurred during that natural selection event in that population
true
