BIO120H1 Chapter Notes - Chapter 1: Reaction Rate, Vapor Pressure, Hadley Cell

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BIO Chapter 1:
๎€ecology, greek meaning โ€œhouse, study oh how organism interact in an
environment
๎€Environmental supports systems: things on which humanity relies for fod,
water and protection against natural catastrophes.
๎€Some examples of these are: watersheds, agriculture lands, and wetlands.
๎€An ecological system may be an organism, a population, or assemblage of
populations together, an ecosystem or the biosphere.
๎€Each smaller system is a subset (part) of the next larger one.
๎€Most fundamental part of ecology: organism
๎€Ultimately, all environments are linked together in a single biosphere [known
as the ultimate ecological system]
๎€Population: many organisms of the same kind living together
๎€Populations differ from organism because populations are potentially
immortal; births replace deaths
๎€They also have roper ties such as geographic ranges, densities, and variations
in size or composition(evolutionary responses).
๎€Community: populations of different kind make up an ecological community.
๎€Communities have no โ€œvisibleโ€ boundries
๎€ Organism approach: the way in which an individuals form, physiology, and
behaviour help it to survive in its environment.
๎€This explains why organisms are limited to certain environments
๎€For instance, moist areas are home to trees, where as hot and dry areas are
home to shrubs with small leaves.
๎€This helps one understand adaptations: modifications of structures or
function to better suit an organism๎€ increase survival + fitness
๎€Population Approach: variations in the number of individuals, sex ratio, age,
genetic makeup
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Document Summary

ecology, greek meaning house, study oh how organism interact in an environment. environmental supports systems: things on which humanity relies for fod, water and protection against natural catastrophes. some examples of these are: watersheds, agriculture lands, and wetlands. an ecological system may be an organism, a population, or assemblage of populations together, an ecosystem or the biosphere. each smaller system is a subset (part) of the next larger one. ultimately, all environments are linked together in a single biosphere [known as the ultimate ecological system] population: many organisms of the same kind living together. populations differ from organism because populations are potentially immortal; births replace deaths. they also have roper ties such as geographic ranges, densities, and variations in size or composition(evolutionary responses). community: populations of different kind make up an ecological community.

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