commensalisms (p. 209) keystone species (p. 210) ecological succession (p. 213) primary succession (p. 213) secondary succession (p. 213) pioneer species (p. 214) Chapter 6 Guiding Questions – 1. In order to study nature better, scientists have organized it into increasing levels of complexity. Distinguish between each level: What does this level consist of? What do scientists at this level? Individual Population Community Ecosystem Biosphere 2. How do the following characteristics affect how populations change over time? Factor How factor affects (or is related) to populations Size (N) Density Distribution Sex ratio Age structure
commensalisms (p. 209) keystone species (p. 210) ecological succession (p. 213) primary succession (p. 213) secondary succession (p. 213) pioneer species (p. 214) Chapter 6 – Guiding Questions 1. In order to study nature better, scientists have organized it into increasing levels of complexity. Distinguish between each level: What does this level consist of? What do scientists at this level? Individual Population Community Ecosystem Biosphere 2. How do the following characteristics affect how populations change over time? Factor How factor affects (or is related) to populations Size (N) Density Distribution Sex ratio Age structure