test

• Population density can only be measured in organisms/unit of space or area_ 
• The sampling technique a biologist uses to determine population size depends on a variety of factors
• The maximum number of organisms that can be sustained by available resources over a given period of time is known as the carrying capacity
• The population density measurement that looks at the distribution of organisms within the usable areas of the habitat is known as ecological density
• The number of organisms within the total area of the entire habitat is known as population size
• The dispersion pattern in which organisms are spread throughout a habitat in an unpredictable manner is random
•  A factor limiting population growth that has a greater impact as the density increases is said to be a density dependent factor
• A factor limiting population growth that has a constant impact as the density decreases is said to be density independent
• An ecological relationship in which one animal kills and eats another is called predation
• The distinctive white stripe on a skunk is an example of chemical as a defence mechanism
• When using mark-recapture sampling, an ecologist determines the number of marked individuals in the original sample (M), the number of organisms recaptured (n), and the number of marked organisms in the recaptured group (m). 

  Using these variables, the total population N = M(n)/m
• When two members of the same species rely on the same resources, intraspecific competition results.
• The pattern in which organisms are equally spaced throughout their habitat is known as uniform dispersion
• Maple seeds sprouting on the forest floor must have enough minerals, water, and space to succeed. If they have sprouted in the shade of a much larger tree, there is not enough sunlight for the seedlings to grow. Ecologically, the lack of sunlight is acting as a(n) limiting factor for the seedlings. 
• The maximum number of organisms that can be sustained by available resources over a given period of time is the carrying capacity