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Honeybees produce a sweet and nutritious substance, honey.
NAD⁺ is a coenzyme that plays an important role mainly in catabolic processes, while NADP is important in anabolic processes as hydrogen carriers.
An ant colony consist of a queen, male ants and workers.
Widespread heterotrophic unicellular organisms with constantly changing shapes
System that satisfies consumers’ demands of water supply, wastewater disposal, electricity, heat and gas supply and telecommunication.
ATP is the main source of energy for cells.
The masterpieces of ancient Greek potters are important archaeological artefacts.
The pericarp of real fruits develops from the carpel, while the pericarp of pseudofruits develops from other parts of flowers.
During swallowing food travels from the mouth cavity into the stomach.
This animation demonstrates how solar energy can be utilised.
This animation demonstrates how horse chestnut trees change throughout the seasons
The three main types of blood vessels in the human body are the arteries, the veins, and the capillaries.
A game to practise the use of analogue and digital clocks.
Water turbines convert the kinetic energy of water into electric current.
A periodic climate pattern that occurs across the tropical Pacific Ocean every five years.
The Crow are Native Americans who inhabited the Yellowstone River valley.
Surface epithelia cover the external and internal surfaces of the body
The United States entered World War II after the devastating attack by the Japanese navy.
Moles are small subterranean mammals with modified, spade-like forelegs.
Division of space by three intersecting planes in several different arrangements.