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…
Continue readingWhat 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…
Continue readingWhich 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…
Continue readingWhat 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…
Continue readingWhat Gas Do Humans Primarily Exhale When Breathing? Oxygen Nitrogen Carbon Dioxide Hydrogen Did You Know! You Have a Second Brain in Your Gut: Your gut contains around 100 million…
Continue readingWhich Of These Nutrients Provides The Most Energy? Carbohydrates Fats Proteins Vitamins Did You Know! The molars are used for grinding food: Your molars, located at the back of your…
Continue readingHow Many Chambers Does The Human Heart Have? 2 3 4 5 Did You Know! Humans have two sets of teeth in their lifetime: We first get a set of…
Continue readingWhich Is The Largest Gland In The Human Body? Pancreas Liver Thyroid Spleen Did You Know! Teeth are the hardest substance in the human body: Enamel, the outer layer of…
Continue readingWhat Is The Name Of The Pigment Responsible For The Color Of Your Skin? Keratin Hemoglobin Melanin Collagen Did You Know! Red Blood Cells Have a Short Lifespan: Red blood…
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