| A | B | 
|---|
| I am unicellular. I live in extreme environments. What am I? | Archaea | 
| I include tigers, snails, spiders, and bats. What am I? | Animalia | 
| I have no nucleus. What am I? | Arachaea, Eubacteria | 
| I have a nucleus and a cell wall. What am I? | Plantae, Fungi, Protista (some) | 
| I am unicellular. What am I? | Archaea, Eubacteria, Protista (many), Fungi (yeast) | 
| I include trees, grasses, and mosses. What am I? | Plantae | 
| I am either single-celled or lack complex structures (very simple organisms). I have a nucleus. What am I? | Protista | 
| I include organisms that are very animal-, plant-, or fungus-like but are much simpler. What am I? | Protista | 
| I include mushrooms, molds, and yeasts. What am I? | Fungi | 
| I can move and obtain my energy by consuming food. What am I? | Animalia, Protista (some) | 
| I am mostly multi-cellular, have a nucleus and a cell wall, but no chloroplast. What am I? | Fungi | 
| I am multi-cellular and obtain energy from the sun. What am I? | Plantae | 
| I have a nucleus, cell wall, and chloroplast. What am I? | Plantae, Protist (sea kelp) | 
| I obtain energy by absorbing materials from the surrounding environment. What am I? | All decomposers, including Fungi, Animal (some like earthworms), Bacteria | 
| I am the most common unicellular organism on Earth. What am I? | Eubacteria | 
| I am a multi-cellular decomposer with a cell wall. What am I? | Fungi | 
| I am multi-cellular. What am I? | Protista (some), Fungi, Plantae, Animalia | 
| I have a nucleus. What am I? | Protista, Fungi, Plantae, Animalia | 
| I am unicellular or multi-cellular but always lack complex cell structures. I have a nucleus. What am I? | Protista | 
| I am unicellular, do not have a nucleus, and live almost everywhere on Earth. What am I? | Eubacteria | 
| I am multi-cellular, have a cell wall, but do not use sunlight to obtain food. What am I? | Fungi |