Simplify the following text for a Grade 7 native English-speaking person.
Original: Sense of smell : Frisch discovered that bees can distinguish various blossoming plants by their scent , and that each bee is â flower constantâ .
Simplified: Sense of smell : Frisch discovered that bees can distinguish various blossoming plants by their scent , and that each bee is â flower constantâ .45 â `` 51