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Ecology Exam !
Ch. 1-6
| Question | Answer |
|---|---|
| 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
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