biological system
complex network of biologically relevant entities on the macro to the nanoscopic scale
ecosystem
community of living organisms together with the nonliving components of their environment, interacting as a system
immune system
biological system
sex-determination system
biological system that determines the development of organism’s sex
cardiac pacemaker
Network of cells that facilitate rhythmic heart contraction
sensory system
biological system
pollen zone
type of zone
complement system
part of the immune system that enhances (complements) the ability of antibodies and phagocytic cells to clear microbes and damaged cells from an organism, promotes inflammation, and attacks the pathogen's cell membrane
limbic system
structures of the brain
ganglion
nerve cell cluster or a group of nerve cell bodies located in the peripheral nervous system; ganglia house the cells bodies of afferent nerves and efferent nerves
reward system
group of neural structures responsible for positive emotions
biome
distinct biological communities that have formed in response to a shared physical climate
androecium
complete set of stamens in a flower
mating system
system of sexual reproduction in a population
photosystem
structural units of protein involved in photosynthesis