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Ecology Exam !

Ch. 1-6

QuestionAnswer
Bacteria - Horizontal gene transfer prokaryotic organisms transferring bits of their DNA to other bacteria that are not closely related
Genotype The set of genes an organism carries
Phenotype An attribute of an organism, such as its behavior, morphology, or physiology
Evolution Change in the genetic composition of a population over time
Natural Selection Change in the frequency of genes in a population through differential survival and reproduction of individuals that possess certain phenotypes
Fitness The survival and reproduction of an animal
Prokaryotes a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles. Prokaryotes include the bacteria and cyanobacteria.
Eukaryotes - protists, plants, fungi any organism whose cells have a cell nucleus and other organelles enclosed within membranes. Eukaryotes belong to the taxon Eukarya or Eukaryota.
Hypothesis An idea that potentially explains a repeated observation
Prediction A logical consequence of a hypothesis
Ecological systems exist as a hierarchy. Example?
Ecological Systems are governed by physical and biological principles. For example...
Within ecological systems, different organisms play diverse roles. For example...
How are Ecological systems are influenced by humans?
Scientists use observations, experiments, and models to study ecology. Give an example of each one.
Ecology The scientific study of the abundance and distribution of organisms in relation to other organisms and environmental conditions
Ecological systems Biological entities that have their own internal processes and interact with their external surroundings
Individuals Living beings; the most fundamental unit of ecology
Species Historically defined as a group of organisms that naturally interbreed with each other and produce fertile offspring. Current research demonstrates that no single definition can be applied to all organisms
Populations Individuals of the same species living in a particular area
Communities All populations of species living together in a particular area
Ecosystem One or more communities of living organisms interacting with their nonliving physical and chemical environments
Biosphere All of the ecosystems on Earth
Adaptation A characteristic of an organism that makes it well-suited to its environment
Conservation of matter and energy this law states that matter cannot be created or destroyed, but can only change form
Dynamic
Created by: briawenger