Levels of Biological Organization - BECPOOTCOM
BECPOOTCOM - The biosphere, Ecosystems, Communities, populations, organisms, organs/organ systems, tissues, cells, organelles, molecules
communities - array of organisms inhabiting a particular ecosystem
population - all of the individual spec...
prokaryotic cell - lacks a nucleus or other membrane-enclosed organelles
genome - the entire library of genetic instructions that an organism inherits
genomics - the study of whole sets of genes (or other DNA) in one or more species
proteomics - the study of a set of proteins and their properties
,proteome - the entire set of protein expressed by a given cell or group of cells
bioinformatics - the use of computational tools to store, organize, and analyze the
huge volume of data that results from high-throughput methods
Classifying life - DKPCOFGS
DKPCOFGS - domain, kingdom, phylum, class, order, family, genus, species
Bacteria - most diverse and widespread prokaryotes
archea - live in extreme environments
Taxonomy - names and classifies species into a hierarchical order
On the Origin of Species by Natural Selection - published in 1859 by Charles
Darwin
Descent with modification - view that contemporary species arose from a
succession of ancestors
Natural selection - proposed mechanism for descent with modification
Ecology - study of the interactions between organisms and the environment
Abiotic factors affecting the distribution of organisms include - Temperature
, Water
Oxygen
Salinity
Sunlight
Soil
aibiotic - nonliving; referring to the physical and chemical properties of an
environment (temperature, water, oxygen, sun light, soil)
biotic - pertaining to the living factors -the organisms- in an environment
Microclimate - determined by fine-scale differences in the environment that affect
light
and wind patterns
convergent evolution - the evolution of similar features in independent
evolutionary lineages
Biotic factors that affect the distribution of organisms - Predation
Herbivory (For example, sea urchins can limit the distribution of seaweeds)
Competition
Mutualism
Parasitism
Dispersal - the movement of individuals or gametes away from centers of high
population density or from their area of origin
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