This package includes MasteringBiology‎(‎R‎)‎‎.‎ Elements of Ecology‎,‎ Ninth Edition continues to explain ecological processes clearly and concisely‎,‎ with a greater emphasis on the relevance of ecology to everyday life and the human impact on ecosystems‎.‎ This dramatically revised edition discusses issues of human ecology throughout the text and provides a greater variety of opportunities for students to learn‎,‎ practice‎,‎ and develop quantitative and analytical skills‎.‎ Current research examples and other content updates are supported by more than 200 redesigned‎,‎ full‎-color illustrations‎,‎ graphs‎,‎ and tables‎.‎ With Elements of Ecology‎,‎ Ninth Edition you can‎:‎ * Help Students Interpret and Analyze Ecology Data‎:‎ New and expanded in‎-text instruction and practice is provided in Interpreting Ecological Data figure questions‎,‎ in‎-depth Quantifying Ecology boxes‎,‎ and Analyzing Ecological Data case studies‎.‎ Many are expanded and assignable in MasteringBiology‎.‎ * Keep Your Course Current and Relevant while also keeping students focused on learning essential concepts‎:‎ With updated ‎"‎Field Studies‎"‎ and research references throughout‎,‎ the Ninth Edition also provides a streamlined discussion on metapopulations and integrates human ecology concepts into all chapters