BIO-181 Exam 2
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11 Terms
Ecology is…
studying relationships between organisms and environment
Organismal Ecology is…
study of an organism’s relationship with its environment
Study of Population is…
study of interactions between members of same species
Abiotic means…
non-living physical and chemical elements
Biotic means…
living organisms
Examples of abiotic elements are…
Water, air, soil, sunlight, minerals
Examples of biotic organisms are…
Animals, plants, fungi
Populations are…
groups of individuals of the same species in same place
What are the three characteristics that make a population?
Range, pattern of spacing, change in size through time
What are examples of Density-dependent factors in population regulation?
Predation, inter- and intraspecific competition, accumulation of waste, diseases, etc.
What are examples of Density-independent factors in population regulation?
Weather, natural disasters, pollution, and other chemical/physical conditions