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Living organisms are classified into various trophic levels based on the role they play in the food chain. This video presents these trophic levels.
The great spotted woodpecker highly depends on woodland habitat, which is reflected in its anatomy and lifestyle as well.
Thanks to advances in medicine and our constantly deepening knowledge of biology, we are living longer and longer. But how long can we live?
The California kingsnake is one of the most popular species of pet reptiles. It was named after its habit to consume other snakes every now and then.
The easiest way to adulterate honey is to feed bees sugar syrup. Bees can also break down this type of sugar.
Honey bees fly from flower to flower, harvesting nectar and pollen to take them back to the colony.
It is the most beautiful forest plant, one which we come across during outings. Let’s take a closer look at the characteristics of this plant.
The composition, operation and stamina of the human body and the way one feels greatly depend on diet. Let’s see how we can eat healthy every day.
Eukaryotic cells with nuclei measuring only a few micrometres may contain nearly 2 metres of DNA, coiled multiple times.
Neurons are cells specialised for transmitting electric signals.
Systemic circulation carries oxygenated blood from the heart to the body, while pulmonary circulation carries oxygenated blood from the lungs to the heart.
The urinary system serves for the removal of harmful and useless materials from the body.
Bones of the lower limbs are connected to the trunk by the pelvic girdle.
The bones of the upper limbs form the pectoral girdle and the arms.
The two main parts of the central nervous system, the brain and the spinal cord are protected by the skull and the spinal column.
NAD⁺ is a coenzyme that plays an important role mainly in catabolic processes, while NADP is important in anabolic processes as hydrogen carriers.
A hollow digestive organ with a muscular wall, located between the oesophagus and the small intestine.
The knee joint is made up by the femur, the tibia and the knee cap.
