Ecology Questions
Explore questions in the Ecology category that you can ask Spark.E!
When are most grasses and forbs susceptible to defoliation and lose vigor?
What are two ways in which grazing animals affect the vegetation? The authors suggest that grazing includes four aspects of defoliation. List three of them.
What percentage of the earth’s surface is rangeland?
What techniques have most often been used to study defoliation?
The smallest population size that can avoid extinction is called:
All species populations are uniformly distributed across their ranges.
Human activity can affect the population size of another species through:
The human growth curve is ___-shaped.
The loss of one population can cause the extinction of another population that depends on the first population for food. This is an example of:
In which biological interaction does the presence of one species inhibit the growth of another while being itself unaffected?
An organism's energy, nutrient and survival requirements are aspects of its:
At the time that a population's growth curve begins to rise dramatically, that population is demonstrating its ___ potential.
___ happens when one organism feeds upon another.
The population size that can be maintained over the long term is called the:
Which of the following population growth curves would be expected when a limiting factor is present?
___ happens when organisms vie for the same resources such as food, living space or mates.
Scientists estimate that the wold is currently experiencing approximately...
What types of organisms are decreasing in population the fastest?
Rate of extinction in _______ times ________ during the past 50 years compared to any other time in human history
What group has had the greatest number of extinctions since 1500?