Environmental Science 15th Edition by Scott Spoolman,Tyler Miller

تمرين 6

What is the key concept for this section? Define population. Why do most populations live in clumps? List four variables that govern changes in population size. Write an equation showing how these variables interact. What is a population's age structure and what are the three major age groups called? Define range of tolerance. Define limiting factor and give an example. Define population density and explain how some limiting factors can become more important as a population's density increases.