Puzzle Hints, Tips, and Solutions Revealed

If you are ready for revelation, here is how today’s delicate puzzle is breaking down:
Yellow (member of a kingdom in taxonomy): animal, bacteria, mushroom, plant
These are organic kingdoms, a mixture of familiar and less obvious classifications. Remember that mushrooms are not plants!
Green (graduated instruments): beaker, sovereign, rapporteur, syringe
These are used to measure the quantities, whether in scientific laboratories or geometry lessons.
Blue (types of penguins): Emperor, King, Chinstrap, Macaroni
It’s penguin day. The Emperor and King may be familiar, but Macaroni and Chinstrap can surprise you unless you are passionate about animals.
Purple (‘e’ things): trade, mail, scooter, signature
Each of them becomes electronic when you add a prefix, a prefix, electronic commerce, an e-mail, a scooter, an electronic signature. A delicate set that has taken a contemporary technological thinking.