Chapter 1: scope of bio
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Created by:
renatasantos on December 8, 2011
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34 terms
Terms | Definitions |
|---|---|
 Archaea | Domain in which cells are prokaryotic, separate from bacteria. |
| Bacteria | Domain in which cells are prokaryotic, separate from bacteria. |
| Biosphere | All the parts of the planet that are inhabited by living things; sum of all Earth's ecosystems. |
| Cell | Basic unit of living matter; separated from its environment by a plasma membrane. |
| Class | A group of organisms with common characteristics, attributes, qualities or traits. |
| Classification | The systematic arrangement of similar entities on the basis of certain differing characteristics and the basis of their relationships. |
| Consumer | Organism that obtains food by eating producers (autotrophs) or other consumers. |
| Diversity | The number and variety of species present in an area and their spatial distribution. |
| DNA | Molecule responsible for inheritance; nucleic acid that contains the sugar deoxyribose. |
| Domain | Broadest category used to classify life forms. |
| Ecosystem | Community of living things plus the nonliving features of the environment that support them. |
| Energy | The capacity for work. |
| Environment | The external conditions, resources, stimuli etc. with which an organism interacts. |
| Eukarya | The domain comprised of eukaryotes or organisms whose cells contain a true nucleus. |
| Eukaryotic | Cell with a nucleus (surrounded by its own membrane) and other internal organelles. |
| Evolution | Generation-to-generation change in the proportion of different inherited genes in a population that account for all of the changes that have transformed life over an immense time. |
| Family | Organisms belonging to the same family evolved from the same ancestors and share relatively common characteristics. |
| Gene | Unit of inherited information in DNA. |
| Genus | A taxonomic category ranking used in biological classification that is below a family and above a species level, and includes group(s) of species that are structurally similar or phylogenetically related. |
| Homeostasis | Internal stability or "steady state" maintained by the body. |
| Kingdom | A taxonomic rank that is composed of smaller groups called phyla (or divisions, in plants). |
| Multicellular | Consisting of many cells. |
| Order | A taxonomic rank used in classifying organisms, generally below the class, and comprised of families sharing a set of similar nature or character. |
| Organisms | Living things. |
| Photosynthesis | Process by which plants use the sun's energy to convert water and carbon dioxide into sugars. |
| Phylum | A group of Classes with similar distinctive characteristics. |
| Population | Group of individuals of the same species living in a particular area at the same time. |
| Producer | Organism that makes its own food (autotroph) and produces organic molecules that serve as food for other organisms in its ecosystem. |
| Prokaryotic | Cell lacking a nucleus and most other organelles. |
| Regulation | The adaption of form or behaviour of an organism to changed conditions. |
| Reproduction | The production of offspring by organised bodies. |
| Species | A distinct form of life. |
| System | Complex organization formed from a simpler combination of parts. |
| Unicellular | Consisting of a single cell. |
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