True or False trivia questions are the perfect way to mix learning with fun, especially when it comes to biology. Whether you’re a student brushing up on the basics or just someone who loves random facts, these questions will keep you engaged and entertained. Get ready for some surprising facts, tricky statements, and maybe a few biology myths busted along the way.
These questions span everything from the human body to ecosystems, plant life, and genetics. Let’s take a look at how to get started and explore the best True or False questions to bring your next trivia game to life.
Play True or False Online
Why stick to paper when you can play biology trivia online? With an interactive version, you can challenge yourself and others from anywhere, anytime. Whether you’re hosting a virtual quiz, studying for exams, or just playing for fun, this version brings the thrill of biology trivia right to your screen.
Try it now to see how much you really know—or how much you can bluff your way through when it comes to the natural world!
How to play the True or False biology game
Playing True or False couldn’t be easier. Here’s a simple step-by-step guide to help you get started:
- Pick a biology category. Choose a topic like human anatomy, plant biology, or animal kingdom. Then, pick a statement to read out loud.
Example: “Humans have more than 200 bones in their body.” True or false?
Guess the answer. Each player has to decide whether the statement is true or false—once you pick, no turning back!
Reveal the answer. After everyone locks in their guesses, announce the correct answer. If you’re right, earn a point!
Keep the trivia going. You can keep playing for as many rounds as you like, changing categories to keep things interesting. At the end, tally up the points, and crown the winner as the ultimate biology trivia expert!
Human Anatomy True or False Questions
Ready to test your human anatomy knowledge? These True or False questions are perfect for anyone who thinks they know their way around the human body—or just likes to throw out wild guesses.
Whether you’re looking to impress your friends or quiz yourself, these statements are sure to get you thinking (and maybe laughing a little too). Get comfortable and let’s see how well you know the complexities of the human body.
1. True or False: The human body has more than 600 muscles.
It’s a workout just thinking about it.
2. True or False: Your bones are stronger than steel.
Better start eating calcium.
3. True or False: The human brain is the most energy-consuming organ.
Brain, always stealing the spotlight.
4. True or False: Your stomach gets new lining every few days.
That’s one way to avoid heartburn.
5. True or False: The left side of your brain controls the right side of your body.
Cross-wired, but in a good way.
6. True or False: Humans have three kidneys.
I wish we had extras.
7. True or False: Your skin is the largest organ in your body.
Talk about skin goals.
8. True or False: Humans can survive without a spleen.
Just a minor inconvenience.
9. True or False: Your heart beats about 100,000 times a day.
Time for a cardio break.
10. True or False: The human body has five senses.
But we all know some are just better than others.
11. True or False: Your liver can regenerate itself.
It’s basically a body builder.
12. True or False: You can’t taste food without a tongue.
Yep, kind of important.
13. True or False: The average adult body is made up of 60% water.
Basically a human sponge.
14. True or False: Your eyes blink about 15-20 times per minute.
That’s a lot of blinks to count.
15. True or False: You have two lungs.
I hope you didn’t get attached to the idea of extra lungs.
16. True or False: Your brain is composed of 70% water.
Makes sense, brain’s gotta stay hydrated.
17. True or False: Every human has a unique tongue print.
Better start trademarking your tongue.
18. True or False: Your bones are constantly being replaced.
Guess they’ve got a busy schedule.
19. True or False: The appendix has no known purpose.
Nice try, appendix.
20. True or False: Your blood is blue until it hits oxygen.
The body’s version of a magic trick.
21. True or False: Humans have more bones as babies than adults.
When you’re a baby, you’re just extra.
22. True or False: The human body has four blood types.
Guess you don’t want to mix these up.
23. True or False: Your skin renews itself every 30 days.
That’s a lot of skin maintenance.
24. True or False: Your small intestine is about 20 feet long.
Guess it’s not called “small” for nothing.
25. True or False: Your body produces about 1-2 liters of saliva daily.
Talk about a wet mouth.
26. True or False: Your body is about 30% muscle mass.
Let’s hope we’re getting those reps in.
27. True or False: The human nose can distinguish over 1 trillion smells.
That’s a lot of sniffing.
28. True or False: There are more bacteria in your body than cells.
Your body’s a walking colony.
29. True or False: The average human body has 206 bones.
Good thing we’re not an octopus.
30. True or False: Your bones stop growing at age 21.
No more bone-growing spurt!
31. True or False: The human body contains enough fat to make seven bars of soap.
Who knew we were so soapy?
32. True or False: Your body has more sweat glands than hair follicles.
Here’s to sweating more than shedding.
33. True or False: The human body has two sets of teeth during its lifetime.
Keep brushing those pearly whites.
34. True or False: Humans can regrow lost teeth as adults.
That would’ve been a cool superpower.
35. True or False: Your body produces new skin cells every minute.
That’s a lot of skincare happening.
36. True or False: You can only see about 1% of the body’s total nerve cells.
Shh, your nerves are working in the background.
37. True or False: You have more than one heart.
And no, you can’t donate the extras.
38. True or False: The human body contains enough carbon to fill 9,000 pencils.
Now that’s some serious writing potential.
39. True or False: Humans are the only species that can speak.
We can do more than just grunt, people.
40. True or False: Your body has no natural ability to create vitamin D.
Gotta thank the sun for that one.
41. True or False: All cells have a cell membrane.
It’s a membrane kind of life.
42. True or False: Your brain is larger than a chimpanzee’s brain.
Hope your brain is feeling smart today.
43. True or False: Your stomach can dissolve metal.
Best not to test that theory.
44. True or False: The human body can survive for weeks without food.
But good luck without water.
45. True or False: Your lungs contain air sacs called alveoli.
They do all the heavy lifting in your breathing.
46. True or False: Your muscles make up 40% of your body weight.
That’s a lot of flexing.
47. True or False: Humans can breathe and swallow at the same time.
Try that at home, but not recommended.
48. True or False: You can have more than 100% of your DNA tested.
Technically, yes, but don’t ask for a refund.
49. True or False: You can hear better underwater than on land.
Not unless you’re a dolphin.
50. True or False: The human body can generate electricity.
It’s basically a living battery.
51. True or False: Your bones are always growing in length.
Actually, they stop at a certain point.
52. True or False: Your body burns calories when you sleep.
Dreaming about calories lost.
53. True or False: A human body has more than 100 muscles in the eye.
Get those blink reps in.
54. True or False: The human eye can distinguish 10 million different colors.
But who’s counting?
55. True or False: Every human is born with blue eyes.
Nope, we come in all colors.
56. True or False: You have about 2-5 liters of blood in your body.
Sounds like a lot, right?
57. True or False: Your body contains enough iron to make a nail.
No need to go for a metal diet.
58. True or False: Your body can detect more than one type of pain at once.
Juggling pain, impressive.
59. True or False: Your kidneys filter over 50 gallons of blood each day.
A very dedicated filtration system.
Plant Biology True or False Questions
Think you know your plants? Prepare to challenge your knowledge of plant biology with these True or False questions. Whether you’re a seasoned botanist or just someone who likes to get their hands dirty in the garden, you’re in for a plant-packed quiz with a little humor to keep you on your toes!
1. True or False: Plants can hear.
Who knew they had ears?
2. True or False: Chlorophyll makes plants green because it’s a type of paint.
It’s not that artistic.
3. True or False: All plants need sunlight to grow.
Shocking, right?
4. True or False: Cacti are the only plants that store water.
Spoiler: They aren’t.
5. True or False: Trees can communicate with each other.
It’s like a forest gossip session.
6. True or False: Bamboo is the fastest-growing plant on Earth.
It’s basically a plant rocket.
7. True or False: Venus flytraps only eat insects.
Don’t ask them to dinner.
8. True or False: Plants have brains.
Well, sort of.
9. True or False: Some plants can eat small mammals.
Talk about aggressive salad.
10. True or False: Moss can grow in space.
Space, the final frontier for moss.
11. True or False: The world’s largest living organism is a plant.
It’s just chilling under the earth.
12. True or False: Plants can sense touch.
They’re not quite touchy-feely, but close.
13. True or False: The coconut tree is a member of the palm family.
You’re not dreaming of coconuts.
14. True or False: Plants only produce oxygen during the day.
They sleep, too.
15. True or False: The giant sequoia is the tallest tree in the world.
Spoiler: It’s actually the tallest by volume, not height.
16. True or False: A tree’s rings can tell its age.
Seems obvious, but true!
17. True or False: All plants produce flowers.
Not every plant is a show-off.
18. True or False: Apples grow on vines.
Let’s just pretend you didn’t say that.
19. True or False: Plants can live forever.
Well, unless we forget to water them.
20. True or False: Some plants can move.
Creepy, right?
21. True or False: Aloe vera can help heal burns.
Aloe to the rescue!
22. True or False: Some plants are carnivorous.
No need for a knife and fork.
23. True or False: Plants only need water and sunlight to thrive.
Turns out, they’re a little pickier.
24. True or False: Orchids are the most numerous type of plant on Earth.
They’re kind of overachievers.
25. True or False: Bamboo can grow over three feet in one day.
Talk about a growth spurt.
26. True or False: All plants can perform photosynthesis.
Some plants just skip it.
27. True or False: Aloe vera is toxic to dogs.
Not their favorite treat.
28. True or False: Plants have the ability to “learn.”
No, they don’t take classes.
29. True or False: All plants require soil to grow.
Not all green things play by the rules.
30. True or False: The Amazon rainforest is home to over half of the world’s plant species.
And a lot of bugs.
31. True or False: The banana tree is a tree.
Sorry, it’s a giant herb.
32. True or False: Pineapple plants grow on trees.
They prefer to be closer to the ground.
33. True or False: The process of photosynthesis only happens in leaves.
Not quite, those sneaky stems help too.
34. True or False: A cactus can live for over 100 years.
They really know how to take their time.
35. True or False: Plants can grow in complete darkness.
Unless they’re fungi, nope.
36. True or False: Some plants can walk.
Just picture them waddling.
37. True or False: A sunflower always faces the sun.
They like to follow the crowd.
38. True or False: A pumpkin is technically a fruit.
Don’t argue with the facts.
39. True or False: The world’s largest flower smells like rotting meat.
Talk about a stinker.
40. True or False: All plants have roots.
Roots are a necessary evil for most, but not all.
41. True or False: Plants feel pain when they’re cut.
Not in the way you think.
42. True or False: The tallest plant on Earth is the redwood tree.
Spoiler: They’re massive.
43. True or False: A cactus can live without water for a year.
They are definitely not thirsty.
44. True or False: You can grow a plant in a potato.
Potato plant, anyone?
45. True or False: Some plants can grow in saltwater.
They’re like the rebels of the plant world.
46. True or False: Plants can recognize their own species.
They’re a little antisocial, but not that much.
47. True or False: Ferns reproduce by seeds.
Not all plants use seeds; some just want to spore.
48. True or False: A plant’s leaves can help regulate its water use.
Like a natural thermostat.
49. True or False: There are more types of trees than any other plant.
You should see their family reunion.
50. True or False: Plants can sense when you’re about to pick them.
Maybe they just sense your intent.
51. True or False: The world’s most poisonous plant is called the “deadly nightshade.”
Nightshade knows how to party.
52. True or False: Tomatoes are considered fruits in the botanical world.
Don’t get your salad confused.
53. True or False: Wheat is a type of grass.
Grass isn’t just for lawns.
54. True or False: Trees are the only plants that produce oxygen.
Don’t forget about those algae!
55. True or False: Plants can’t reproduce without the help of insects.
Some plants play hard to get.
56. True or False: The avocado plant is a type of tree.
It’s not all guacamole and dreams.
57. True or False: Apples were originally red, not green.
Plot twist: They were yellow!
58. True or False: The largest living organism is a fungus.
That’s one big mushroom.
59. True or False: The world’s largest tree is a sequoia.
It’s basically a tree skyscraper.
Animal Kingdom True or False Questions
Whether you’re an animal enthusiast or just enjoy a good challenge, these True or False questions about the animal kingdom are here to test your knowledge. From the fastest creatures to the most bizarre facts, you’ll find a mix of the fascinating and the downright surprising. Let’s see how well you really know the creatures that roam our planet!
1. True or False: Kangaroos can’t walk backward.
A few hops forward, none back.
2. True or False: Cheetahs are the fastest land animals.
But they still need a nap.
3. True or False: Elephants have a great memory.
Better than yours, probably.
4. True or False: Penguins can fly.
You wish, flightless friends.
5. True or False: A group of dolphins is called a pod.
No, not a gang.
6. True or False: Polar bears are left-handed.
Guess they just prefer the left paw.
7. True or False: Sharks are mammals.
Close, but not quite.
8. True or False: Ostriches bury their heads in the sand when they’re scared.
Nice try, but that’s just a myth.
9. True or False: A group of owls is called a parliament.
Very serious business.
10. True or False: Giraffes have no vocal cords.
Silent giants roaming around.
11. True or False: The hummingbird is the only bird that can fly backward.
They just love defying expectations.
12. True or False: The blue whale is the largest animal to have ever lived.
And it’s still around, lucky us.
13. True or False: Dogs can only see in black and white.
Not a color explosion for them.
14. True or False: All snakes are venomous.
Spoiler alert: Not all.
15. True or False: Crocodiles can live up to 100 years.
A century of snap.
16. True or False: An octopus has three hearts.
Feeling extra hearted, I guess.
17. True or False: A whale shark is the largest fish in the world.
A fish that’s got it all.
18. True or False: A lion’s roar can be heard up to five miles away.
Loud, proud, and very distant.
19. True or False: All koalas are marsupials.
They’re totally pouch babies.
20. True or False: A rhinoceros can run faster than a horse.
Surprise, they’re quick on their feet.
21. True or False: Sloths can hold their breath for up to 40 minutes.
Like they’ve got all the time in the world.
22. True or False: Giraffes can’t swim.
Too tall for that.
23. True or False: All penguins live in cold climates.
They like to keep it cool but not too cold.
24. True or False: A bat is the only mammal that can fly.
And they do it in style.
25. True or False: The cheetah is the fastest animal in the world.
It’s basically a land rocket.
26. True or False: Hippos can run faster than humans.
Bet you didn’t see that coming.
27. True or False: Elephants can weigh up to 6,000 pounds.
More like 6,000 tons of adorable.
28. True or False: Rabbits can see behind them without turning their heads.
Double the vision, no effort.
29. True or False: Snakes can dislocate their jaws to eat prey larger than their heads.
As if it weren’t creepy enough.
30. True or False: Dolphins sleep with one eye open.
That’s one way to stay alert.
31. True or False: A cheetah’s acceleration is faster than a sports car.
And they do it barefoot.
32. True or False: A giraffe’s neck contains the same number of vertebrae as a human’s.
Just longer and more majestic.
33. True or False: There are more chickens than humans on Earth.
Clearly, chickens rule the world.
34. True or False: A crocodile’s bite is stronger than a great white shark’s.
It’s a battle of jaws.
35. True or False: A panda’s diet consists almost entirely of bamboo.
Bamboo life, bamboo love.
36. True or False: A bat can consume up to 1,000 insects per hour.
Dinner and a show.
37. True or False: Cows have best friends.
And they get stressed without them.
38. True or False: A moose can swim up to six miles without stopping.
That’s some serious stamina.
39. True or False: Owls can turn their heads 360 degrees.
Not quite that spooky.
40. True or False: The lifespan of a housefly is just a few days.
Blink, and it’s gone.
41. True or False: Turtles can breathe through their butts.
Not exactly a glamorous skill.
42. True or False: A wolf’s howl can be heard from over 10 miles away.
Loud enough to make an impact.
43. True or False: A skunk can spray up to 10 feet.
Their scent game is strong.
44. True or False: A rabbit can’t vomit.
It’s all cute, no yuck.
45. True or False: A whale’s heart is the size of a small car.
That’s one serious heart.
46. True or False: Crocodiles can’t stick their tongues out.
Maybe they just don’t feel like it.
47. True or False: Wolves mate for life.
But they don’t always play nice.
48. True or False: A lion’s mane only grows in males.
Not the ladies’ job.
49. True or False: Snakes can live without food for up to two years.
Nothing like a long fasting challenge.
50. True or False: A cat’s purring has been proven to reduce stress in humans.
Who needs therapy when you have a purring kitten?
51. True or False: Koalas sleep for up to 20 hours a day.
Basically, they’re just full-time sleepers.
52. True or False: The largest species of butterfly can have a wingspan of up to 12 inches.
It’s a real beauty.
53. True or False: A kangaroo’s tail is used for balance.
No tail, no hops.
54. True or False: A dolphin’s brain is larger than a human’s.
That’s some serious intelligence.
55. True or False: Flamingos are naturally white but turn pink from the food they eat.
The original influencer look.
56. True or False: The sloth’s claws are used for hanging, not walking.
They’re not the most coordinated.
57. True or False: A wolf pack is usually led by the oldest and wisest member.
Age before beauty in the wolf world.
58. True or False: An octopus has a beak.
A beak… under the sea?
59. True or False: The platypus is one of the only mammals that lay eggs.
Egg-cellent reproduction technique.
60. True or False: A whale shark is the largest fish in the world.
A fish that’s got it all.
