In order to sample population size and density for very small or slow moving organisms, _______________ is most often used. 

Factors in which the density of the population affects growth rate and mortality are called density-dependent factors.   

The interacting populations occupying a given habitat form a 

The statistical study of population changes over time, including birth rates, death rates, and life expectancies, is called ________________. 

Wetland plants that are rooted in the soil but have portions extending above the water’s surface are called 

The human population as a whole is currently experiencing logistic growth.  

Match the marine zone to the characteristic. 

Translate the following sentence into its logical form:  “If John passes the class then he worked hard and came to class on time.”

Write the converse, inverse and contrapositive (in that order) of the statement, “If it snows then it’s cold outside.”

Career ______ is the process of matching career goals and individual capabilities with opportunities for their fulfillment.