- spermine catabolic process
The chemical reactions and pathways resulting in the breakdown of spermine, a polybasic amine found in human sperm, in ribosomes and in some viruses and involved in nucleic acid packaging.
- spermine biosynthetic process
The chemical reactions and pathways resulting in the formation of spermine, a polybasic amine found in human sperm, in ribosomes and in some viruses and involved in nucleic acid packaging.
- background adaptation
Any process in which an organism changes its pigmentation (lightening in response to a brighter environment or darkening in response to a dimmer environment) in response to a change in light intensity.
- integument-mediated background adaptation
Any process in which an organism changes its pigmentation (lightening in response to a brighter environment or darkening in response to a dimmer environment) in response to a change in light intensity detected by light sensitive cells in the integument.
- visual learning
Any process in an organism in which a change in behavior of an individual occurs in response to repeated exposure to a visual cue.