Match the items.

1. obtain food from non-living organic material
   

symbiosis

1. mutually positive arrangement between species
   

phototaxis

1. response to a chemical
   

host

1. response to light
   

taxis

1. member of phylum Foraminifera
   

conjugation

1. organism's response to a stimulus
   

eukaryote

1. cell with membrane-bound structures
   

saprophyte

1. organism in which a parasite is growing
   

radiolarian

1. sexual reproduction in some protozoans
   

chemotaxis