BIOL 122 Lecture Notes - Lecture 2: Parthenogenesis, Santa Barbara City College, Scientific Method
Document Summary
Composed of all the populations of species living together in a common area. Populations interact in a variety of ways. These interactions limit/influence the # of individuals within each population. Boundaries of communities are not always rigid. Separate populations within a given community may affect each other directly or. Focus is on the diversity and relative abundance of different kinds of organisms indirectly living together; affected by: Feeding relationships responsible for fluxes or energy and materials. A group of individuals of the same species living together in a particular area. Geographic range= extent of land and water where the population exists. Density= # of individuals / unit area. Change in size= increase or decrease in the #s of individuals over a period of time. Composition= makeup of the population in terms of gender, size, class, age, etc. Focus is on processes of birth and death, immigration and emigration, influenced by: Unlike a cell, can exist on its own.
