| Term: | brain photoperiodism |
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| Note: | This page represents a term created by the combination ("post-composition") of two ontology terms. For more information on the individual terms, click the hyperlinked name. |
| Name: | brain |
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| Synonyms: | brain structure |
| Definition: | Cavitated compound organ which is comprised of gray and white matter and surrounds the cerebral ventricular system. |
| Ontology: | Anatomy Ontology [ZFA:0000008] |
| Name: | photoperiodism |
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| Synonyms: | response to day length, response to night length, response to photoperiod |
| Definition: | Any process that results in a change in state or activity of an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of detection of, or exposure to, a period of light or dark of a given length, measured relative to a particular duration known as the 'critical day length'. The critical day length varies between species. |
| Ontology: | GO: Biological Process [GO:0009648] QuickGO AmiGO |