##### Which of the following is NOT a primary color? 1. [ ] Red 2. [ ] Green 3. [ ] Purple 4. [x] Brown ##### What is the chemical symbol for the element Oxygen? 1. [x] O 2. [ ] Oz 3. [ ] Oy 4. [ ] Og ##### Which of the following is the largest organ in the human body? 1. [ ] Heart 2. [ ] Brain 3. [ ] Liver 4. [x] Skin ##### What is the study of fungi called? 1. [ ] Mycology 2. [ ] Botany 3. [ ] Zoology 4. [ ] Biology ##### Which of the following is the strongest muscle in the human body? 1. [ ] Biceps 2. [ ] Heart 3. [ ] Abs 4. [x] Gluteus maximus ##### Which of the following is the smallest cell in the human body? 1. [ ] Red blood cell 2. [x] Sperm cell 3. [ ] Skin cell 4. [ ] Brain cell ##### Which of the following is the largest cell in the human body? 1. [ ] White blood cell 2. [x] Ovum 3. [ ] Muscle cell 4. [ ] Fat cell ##### What is the study of insects called? 1. [ ] Herpetology 2. [ ] Entomology 3. [ ] Ornithology 4. [ ] Mammalogy ##### Which of the following is the largest mammal in the world? 1. [ ] Elephant 2. [ ] Whale 3. [ ] Rhino 4. [x] Blue whale ##### Which of the following is the fastest land animal? 1. [ ] Cheetah 2. [ ] Lion 3. [ ] Tiger 4. [x] Leopard ##### Which of the following is the tallest mammal in the world? 1. [ ] Giraffe 2. [x] Giraffe 3. [ ] Elephant 4. [ ] Rhino ##### Which of the following is the smallest mammal in the world? 1. [ ] Shrew 2. [x] Shrew 3. [ ] Bat 4. [ ] Rat ##### Which of the following is the longest living mammal in the world? 1. [ ] Elephant 2. [ ] Whale 3. [x] Turtle 4. [ ] Crocodile ##### Which of the following is the fastest bird in the world? 1. [x] Peregrine falcon 2. [ ] Eagle 3. [ ] Hawk 4. [ ] Owl ##### Which of the following is the largest bird in the world? 1. [ ] Eagle 2. [ ] Hawk 3. [ ] Owl 4. [x] Ostrich ##### Which of the following is the largest reptile in the world? 1. [ ] Crocodile 2. [ ] Alligator 3. [x] Saltwater crocodile 4. [ ] Freshwater crocodile ##### Which of the following is the largest arthropod in the world? 1. [ ] Spider 2. [ ] Scorpion 3. [ ] Insect 4. [x] Japanese spider crab ##### Which of the following is the largest fish in the world? 1. [ ] Shark 2. [x] Whale shark 3. [ ] Marlin 4. [ ] Swordfish ##### Which of the following is the fastest fish in the world? 1. [ ] Sailfish 2. [x] Sailfish 3. [ ] Marlin 4. [ ] Tuna ##### Which of the following is the largest amphibian in the world? 1. [ ] Salamander 2. [ ] Frog 3. [x] Chinese giant salamander 4. [ ] Newt ##### Which of the following is the largest insect in the world? 1. [ ] Butterfly 2. [ ] Beetle 3. [x] Titan beetle 4. [ ] Ant ##### Which of the following is the largest mollusk in the world? 1. [ ] Clam 2. [x] Giant clam 3. [ ] Oyster 4. [ ] Mussel ##### Which of the following is the largest echinoderm in the world? 1. [ ] Sea cucumber 2. [ ] Sea urchin 3. [x] Sunflower sea star 4. [ ] Sand dollar ##### Which of the following is the largest cnidarian in the world? 1. [ ] Jellyfish 2. [ ] Anemone 3. [ ] Coral 4. [x] Lion's mane jellyfish ##### Which of the following is the largest sponge in the world? 1. [x] Giant barrel sponge 2. [ ] Bath sponge 3. [ ] Spongebob 4. [ ] Siliceous sponge ##### Which of the following is the largest crustacean in the world? 1. [ ] Lobster 2. [ ] Crab 3. [x] Japanese spider crab 4. [ ] Shrimp ##### Which of the following is the largest mammal that can fly? 1. [ ] Bat 2. [x] Bat 3. [ ] Bird 4. [ ] Insect ##### Which of the following is the largest bird that can fly? 1. [ ] Eagle 2. [x] Albatross 3. [ ] Hawk 4. [ ] Owl ##### Which of the following is the largest marine mammal that can live on land? 1. [ ] Seal 2. [x] Walrus 3. [ ] Dolphin 4. [ ] Whale ##### Which of the following is the largest flying mammal? 1. [x] Flying fox 2. [ ] Flying squirrel 3. [ ] Flying lemur 4. [ ] Flying snake ##### Which of the following is the largest snake in the world? 1. [ ] Anaconda 2. [x] Reticulated python 3. [ ] Boa constrictor 4. [ ] King cobra ##### Which of the following is the largest lizard in the world? 1. [ ] Iguana 2. [ ] Komodo dragon 3. [x] Komodo dragon 4. [ ] Gecko ##### Which of the following is the largest turtle in the world? 1. [x] Leatherback sea turtle 2. [ ] Green sea turtle 3. [ ] Hawksbill sea turtle 4. [ ] Loggerhead sea turtle ##### Which of the following is the largest rodent in the world? 1. [ ] Rat 2. [x] Capybara 3. [ ] Beaver 4. [ ] Squirrel ##### Which of the following is the largest bat in the world? 1. [ ] Flying fox 2. [x] Flying fox 3. [ ] Fruit bat 4. [ ] Vampire bat ##### Which of the following is the largest snake-like lizard in the world? 1. [ ] Monitor lizard 2. [x] Monitor lizard 3. [ ] Iguana 4. [ ] Gecko ##### Which of the following is the largest bird of prey in the world? 1. [ ] Golden eagle 2. [ ] Harpy eagle 3. [x] Harpy eagle 4. [ ] Bald eagle ##### Which of the following is the largest dinosaur in the world? 1. [ ] Tyrannosaurus rex 2. [x] Argentinosaurus 3. [ ] Diplodocus 4. [ ] Triceratops ##### Which of the following is the largest insectivorous mammal in the world? 1. [ ] Shrew 2. [x] Shrew 3. [ ] Tenrec 4. [ ] Hedgehog ##### Which of the following is the largest carnivorous mammal in the world? 1. [ ] Lion 2. [ ] Tiger 3. [x] Polar bear 4. [ ] Elephant ##### Which of the following is the largest primate in the world? 1. [ ] Gorilla 2. [x] Gorilla 3. [ ] Orangutan 4. [ ] Chimpanzee ##### Which of the following is the largest marsupial in the world? 1. [ ] Koala 2. [x] Kangaroo 3. [ ] Wallaby 4. [ ] Possum ##### Which of the following is the largest flightless bird in the world? 1. [ ] Ostrich 2. [x] Ostrich 3. [ ] Emu 4. [ ] Rhea ##### Which of the following is the largest mammal that can climb trees? 1. [ ] Monkey 2. [ ] Sloth 3. [x] Sloth 4. [ ] Lemur ##### Which of the following is the largest living thing on earth? 1. [ ] Blue whale 2. [ ] Giant sequoia tree 3. [x] Great Barrier Reef 4. [ ] Honey mushroom ##### Which of the following is the largest microorganism in the world? 1. [ ] Bacteria 2. [ ] Virus 3. [x] Thiomargarita namibiensis 4. [ ] Amoeba ##### Which of the following is the largest plant in the world? 1. [ ] Sunflower 2. [ ] Oak tree 3. [ ] Giant sequoia tree 4. [x] Giant sequoia tree