Which Of These Animals Has A Digestive System Most Similar To Humans? Pig Cow Dog Snake Did You Know! Kuru Disease: Kuru is a rare, fatal neurodegenerative disorder caused by…

Which Organ Was Once Thought To Be The Seat Of The Soul By Ancient Greeks? Brain Heart Liver Stomach Did You Know! The “Cinderella Syndrome” (Aquagenic Urticaria): This is an…

Which Of These Body Parts Has No Blood Vessels? Cornea Fingernails Ear cartilage Tongue Did You Know! Your heart can beat outside your body: If the heart is removed from…

Which Animal’s Bite Inspired The Invention Of The Modern Suture? Crocodile Mosquito Leech Ant Did You Know! You produce about 1 to 1.5 quarts of saliva every day: Saliva is…

What Is The Most Abundant Mineral In The Human Body? Iron Zinc Calcium Sodium Did You Know! The human body has a built-in defense against drowning: This is called the…

Which Of These Is The Hardest Substance In The Human Body? Bone Tooth enamel Cartilage Fingernails Did You Know! You have a “second brain” in your gut: Your digestive system…

What Is The Primary Source Of Energy For The Brain? Glucose Protein Fat Salt Did You Know! Your bones are constantly being replaced: The human skeleton is not static; it…

Which Of These Senses Is Most Closely Linked To Memory? Taste Sight Touch Smell Did You Know! You Can Have “Two Left Feet” Literally: About 1 in 100 people are…

What Is The Average Resting Heart Rate For An Adult? 40-60 beats per minute 60-100 beats per minute 100-120 beats per minute 120-150 beats per minute Did You Know! Your…