nature
/ 10
How many harrier subspecies exist?
116
226
Good Answer!
According to the reference classification (version 5.1, 2015) of the International Ornithological Congress (phylogenetic order), 16 species and subspecies are listed.
Wrong Answer!
According to the reference classification (version 5.1, 2015) of the International Ornithological Congress (phylogenetic order), 16 species and subspecies are listed.
nature
/ 10
How many marine mammal species are there in the world?
1134
2234
Good Answer!
Biologists count 134 species of marine mammals in the world (including 5 already extinct).
Wrong Answer!
Biologists count 134 species of marine mammals in the world (including 5 already extinct).
nature
/ 10
For what production are oilseed plants specifically grown?
1Oil
2Textile fibers
Good Answer!
Oilseeds are plants cultivated specifically for their high-fat seeds or fruits, from which oil is extracted for food, energy or industrial use by a process called crushing, in which the seeds are crushed and pressed, leaving a co-product called oilseed cake, which is generally recycled in animal feed.
Wrong Answer!
Oilseeds are plants cultivated specifically for their high-fat seeds or fruits, from which oil is extracted for food, energy or industrial use by a process called crushing, in which the seeds are crushed and pressed, leaving a co-product called oilseed cake, which is generally recycled in animal feed.
nature
/ 10
According to botanists, how many species does the genus Camellia contain?
2Between 100 and 250
1Between 50 and 150
Good Answer!
Camellia is a genus of flowering plants of the family Theaceae, native to eastern and southern Asia from the Himalayan range, Japan and Indonesia. The number of species in the genus varies, depending on the botanist, between 100 and 250.
Wrong Answer!
Camellia is a genus of flowering plants of the family Theaceae, native to eastern and southern Asia from the Himalayan range, Japan and Indonesia. The number of species in the genus varies, depending on the botanist, between 100 and 250.
nature
/ 10
Which is the most active volcano?
2Kīlauea
1Etna
Good Answer!
The most active volcano is Kīlauea with an eruption every year to a year and a half.
Wrong Answer!
The most active volcano is Kīlauea with an eruption every year to a year and a half.
nature
/ 10
Are sperm whales mysticetes or odontocetes?
2Odontocetes
1Mysticetes
Good Answer!
Whales with or without odontocetes include sperm whales, dolphins, killer whales, porpoises, beaked whales, belugas and narwhals.
Wrong Answer!
Whales with or without odontocetes include sperm whales, dolphins, killer whales, porpoises, beaked whales, belugas and narwhals.
nature
/ 10
Do eels have teeth?
1Yes
2No
Good Answer!
Eels have sharp teeth in their upper and lower jaws that allow them to grasp their food, often invertebrates, crustaceans and small fish.
Wrong Answer!
Eels have sharp teeth in their upper and lower jaws that allow them to grasp their food, often invertebrates, crustaceans and small fish.
nature
/ 10
How fast can the African Ostrich run?
270 km/h (43 mph)
150 km/h (31 mph)
Good Answer!
Ostriches are unfit to fly, but excellent at running. Their speed on the ground is remarkable: they can reach 70 km/h (43 mph).
Wrong Answer!
Ostriches are unfit to fly, but excellent at running. Their speed on the ground is remarkable: they can reach 70 km/h (43 mph).
nature
/ 10
What is the largest known eruption?
2Toba
1Santorini
Good Answer!
The largest eruption in volume of ejected materials was Toba 73,000 years ago with 2,800 km3.
Wrong Answer!
The largest eruption in volume of ejected materials was Toba 73,000 years ago with 2,800 km3.
nature
/ 10
Do mites sting?
2No
1Yes
Good Answer!
Mites do not sting, they penetrate our body and walk on our mucous membranes. What is irritating is their excrement and droppings.
Wrong Answer!
Mites do not sting, they penetrate our body and walk on our mucous membranes. What is irritating is their excrement and droppings.
Your Score
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