Southern sea otters
Kelp forests are a. Dry important ecosystem in marine waters by supporting important biodiversity. These kelp forests are threatened by all of the following except:
Some species experience an explosion of population growth to a high peak followed by a crash to a more stable lower level. This is called?
Midsuccessional plant species
On a field trip for a university class you observe an area filled with herbs, grasses, and low shrubs. These are all examples of?
Offspring are large in individual size
Which of the following is not true of an R-selected species?
The relationship between clownfish and sea anemone is
Exponential Growth followed by a steady decrease in population growth until the population size levels off is a typical of
What is the percent change in the otter population from 1995 to 2007
The otter is showing a slow rate of population increase
What generalized trend can be made from 1983 to 2007 using this graph?
One way that species evolve over time to reduce niche overlap is called
A tipping point
Each year, more sea ice melts in the Arctic. In less than five years, there will most likely be a summer when there is no sea ice in the Arctic and this will have large ramifications for the ecology of the area that is dependent on sea ice. This is an example of
Which of the following refers to the ability of a living system to be restored after a period of moderate disturbance?
Using the energy or body of another organisms as a food source
All of the following are forms of nondestructive behavior between species except
When plotting the number of individuals in a popularion against time the data yield a J-shaped curve, which indicates which of the following
Soil formation in a primary succession is encouraged by all the following except
Which of the following is said to occur when members of two or more species interact to gain access to the same limited resources?
Which of the following is an r-strategist?
Late successional plants are largely unaffected by plants at earlier stages of succession, a factor called
Competition for resources
Which of the following is an example of a density-dependent population control?
An agricultural field recently cut for hay
Which of the following is undergoing secondary succession?
When populations of two different species interact over long periods of time, changes in the gene pool of one species can lead to changes in the gene pool of the other. This is called
Population dynamics is the study of the way populations differ from one another in certain characteristics. Which of the following is not one of those characteristics?
Which of the following is not a method prey species use to avoid capture?
Population dynamics examine changes to a population as a result of changing environmental conditions. Those conditions include all of the following except
Which point on the curve reflects the selection like that of an elephant, a K selected species?
The rate at which a population would grow with unlimited resources
The intrinsic rate of increase (r) is
Which of the following is not a method predators use to capture prey?
A reproductive time lag between birth and death rates
Which of the following would cause a population to overshoot it’s carrying capacity
Which of the following is an example of density-independent population control?
Which of the following are not considered predators?
Small, isolated populations are vulnerable to loss of genetic diversity because of four of the following genetic factors. Choose the answer that is NOT one of these factors