What is the largest organ in the human body?
Heart
Liver
Skin
Lungs
How many bones are in an adult human body?
102
156
206
306
Which animal is known as the "King of the Jungle"?
Tiger
Elephant
Lion
Gorilla
What is the fastest land animal?
Cheetah
Horse
Greyhound
Kangaroo
What is the process by which plants make their own food?
Respiration
Photosynthesis
Digestion
Fermentation
Which microorganism causes COVID-19?
Bacteria
Fungus
Parasite
Virus
What is the main function of white blood cells?
Carry oxygen
Fight infections
Digest food
Store energy
Which vitamin is produced when your skin is exposed to sunlight?
Vitamin A
Vitamin B12
Vitamin C
Vitamin D
What is the only mammal capable of true flight?
Bat
Flying squirrel
Penguin
Ostrich
Which blood type is known as the "universal donor"?
A
B
AB
O