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Skeletal muscles form the active part of the locomotor system: they move the bones they are attached to.

1961 m. balandžio 12 d. Iš sovietinio Baikonūro kosmodromo buvo paleistas erdvėlaivis „Vostok-1“ su pirmuoju kosmonautu Jurijumi Gagarinu.

Gerai prisitaikę prie gamtinių sąlygų, Afrikos kaimai yra patikimas kiekvienos genties kultūros atspindys.

Ši animacija parodo svarbiausias reljefo ypatybes, paviršinius vandenis ir atitinkamus jų simbolius.

Energija, išsiskirianti dėl branduolinės reakcijos, naudojama elektros energijai gaminti.

The heart is the central pump of the cardiovascular system beating several billion times over our lifetime.

The skin is the soft outer covering of our body, its three layers are the epidermis, the dermis and the hypodermis.

The central nervous system consists of the brain and the spinal cord, the peripheral nervous system consists of nerves and ganglia.

The main parts of the human brain are the brain stem, the cerebellum, the diencephalon, and the cerebrum, which is divided into lobes.

The three types of muscle found in the human body are the smooth, the striated and the cardiac muscle.

During voice production, the vocal cords are vibrated by the air flowing out of the lungs.

The longest part of the digestive system, where most of the digestion and absorption takes place.

Connective tissues include loose and dense connective tissues, adipose tissue, blood, tendon and bone tissue.

The main parts of the human brain are the brain stem, the cerebellum, the diencephalon, and the cerebrum.

Taste receptors convert chemical stimuli into electric signals.

Olfactory receptors produce electric signals when stimulated by odours.

Didelių gėlavandenių vėžių rūšis, kuri plačiai paplitusi Europoje.

This animation demonstrates the fine molecular structure and mechanism of muscles.

Neurons transmit electrical signals via chemical and electrical synapses.

Unicellular eukaryotes living in freshwaters, capable of feeding autotrophically and heterotrophically.

This animation demonstrates the anatomy of spiders through the example of a common European species.

Plačiai paplitusi sraigių rūšis, dar naudojama maistui.

A mushroom is the fleshy fruiting body of a fungus, made up from hyphae.

Combining a conventional internal combustion engine propulsion system with an electric propulsion system reduces emission.