For Questions 11 to 18, indicate whether the statement is True or False 11.Key population variables does not include dispersion patterns, but it include density. 12.Natural selection is a force that shapes a species life history, the series of events from birth through reproduction to death. 13.Population density is only defined as the number of individuals in an area, not volume. 14.Life tables are used to track survivorship in populations. 15.The three types of survivorship curves reflect species’ variances in strength and agility. 16.Populations with K-selected life history traits produce many offspring and grow fast in unpredictable environments. 17.Resource managers, such as fishery, forest and others are unable to use population ecology to determine sustainable yields in modern times. 18.Human population keeps swelling, although the growth rate is slowing.