Unify; to bring together
Thinking about things in a detailed and intelligent way, so that you can examine and understand things
Have an effect on
Of first rank or importance or value
Connected with or related to the matter at hand
Group of cells that can detect changes in the amount of light in their environment
A solid-bodied animal lacking a cavity between the gut and outer body wall.
Iindividual that has both male and female reproductive organs
Parasitic flatworm that infect the internal organs of their host.
free-living flatworms that live in marine or fresh water