Which plant is the main source of the natural blue dye indigo?
Answer
Indigofera tinctoria
91599 Intermediate Trivia Questions
91599 public questions at this depth. How many can you answer?
Which tree species forms Pando, one of the world’s largest and oldest clonal organisms?
Answer
Populus tremuloides
Which species is known as the world’s largest single flower?
Answer
Rafflesia arnoldii
Which plant is the source of the pungent condiment traditionally made from its grated rhizome in Japan?
Answer
Japanese horseradish
Which plant is the botanical source of the spice green cardamom?
Answer
Elettaria cardamomum
What type of fruit is a strawberry botanically classified as?
Answer
Aggregate accessory fruit
Which plant species produces the spice nutmeg from its seed?
Answer
Myristica fragrans
Which plant produces the spice cloves from its unopened flower buds?
Answer
Syzygium aromaticum
Which freshwater fish is the only native fish of Australia’s genus Neoceratodus?
Answer
Australian lungfish
Which freshwater fish has been Wisconsin's official state fish since 1955?
Answer
Muskellunge
Which freshwater fish is the largest species of African tigerfish?
Answer
Goliath tigerfish
Which freshwater catfish species is scientifically named Ictalurus punctatus?
Answer
Channel catfish
Which freshwater fish is known as the black ghost knifefish?
Answer
Apteronotus albifrons
Which freshwater fish is also known as the Nile tilapia?
Answer
Oreochromis niloticus
At which bay do migrating red knots gather to feed on horseshoe crab eggs?
Answer
Delaware Bay
Which bird holds the record for the longest nonstop flight, flying from Alaska to Tasmania?
Answer
Bar-tailed godwit
What is the scientific name of the African bush elephant, the largest living land animal?
Answer
Loxodonta africana
Which animal is the world’s largest living amphibian?
Answer
Chinese giant salamander
Which primate is the largest living member of the great ape family?
Answer
Eastern gorilla
Which animal is the world’s largest land carnivore by average body mass?
Answer
Polar bear
Which desert plant is famous for producing only two continuously growing leaves during its lifetime?
Answer
Welwitschia mirabilis
Which plant was the first to have its genome completely sequenced?
Answer
Arabidopsis thaliana
Which primate is the world’s smallest by average body mass?
Answer
Madame Berthe’s mouse lemur
Which blood pigment gives a horseshoe crab’s blood its blue colour?
Answer
Hemocyanin
What material makes up most of a rhinoceros’s horn?
Answer
Keratin
How many chambers does a cow’s stomach have?
Answer
Four
The goldfish is a domesticated form of which wild carp species?
Answer
Prussian carp
Which freshwater fish can move over land for short distances using its pectoral fins?
Answer
Walking catfish
What organ do arapaima use as a lung to breathe air at the water's surface?
Answer
Modified swim bladder