Modern Slavs live in 14 European countries that can be classified into 3 groups.
One of the most important monocot crops.
In summer, monsoon winds bring heavy rainfall from the ocean to the continent.
Domesticated animals and crops originate from various parts of the world.
The oxygen cycle describes the movement of oxygen within its three main reservoirs.
The phosphorus cycle describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere.
Viking leaders were elected from tribe members by the right of blood or an act of bravery.
A geyser is a spring characterized by intermittent discharge of water and steam.
The pericarp of real fruits develops from the carpel, while the pericarp of pseudofruits develops from other parts of flowers.
Practice the English alphabet, build words from letters.
Structures consisting of enormous stone blocks, dating back thousands of years, are monuments of megalithic cultures.
This animation demonstrates the anatomy of amphibians through the example of a common species of frogs.
Widespread heterotrophic unicellular organisms with constantly changing shapes
A type of snake with a characteristic spot on its neck.
This animation demonstrates how horse chestnut trees change throughout the seasons
Common ciliated eucaryotic unicellular organisms widespread in freshwaters.
Two meshing gears transmit torque during their rotational motion.
The Pula Arena, located in present-day Croatia, was one of the largest Roman amphitheaters in the Antiquity.
Waterfalls form where the river flows over a steep precipice in its course.
This stunning castle is situated in northern Croatia.