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Tardigrade

Tardigrade

Tardigrades can survive in extreme environments, they can even stay alive in outer space.

Bioloģija

Atslēgvārdi

gauskāji, galējā vide, DNS bojājumu novēršana, segmentēts ķermenis, tieša attīstība, Slieksnis, kutikulas, chitīns, tolerantāko, posmkāju, posmkāji, Dzīvnieki, dzīvnieks, Bioloģija

Saistītie vienumi

DNA

Carrier of genetic information in cells.

Organisation of genetic material

Eukaryotic cells with nuclei measuring only a few micrometres may contain nearly 2 metres of DNA, coiled multiple times.

Radioactivity

The process of the decay of unstable nuclei is called radioactivity.

Pyrimidine (C₄H₄N₂)

A heterocyclic organic compound, its derivatives are thymine, cytosine and uracil.

Amoeba proteus

Widespread heterotrophic unicellular organisms with constantly changing shapes

Paramecium caudatum

Common ciliated eucaryotic unicellular organisms widespread in freshwaters.

Purine (C₅H₄N₄)

A heterocyclic aromatic organic compound, its derivatives include guanine and adenine.

European crayfish

A type of large freshwater crayfish widespread in Europe.

European garden spider

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

Cockchafer (Maybug)

The cockchafer (or maybug) is a widespread bug in Europe. Its larvae, known as chafer grubs are considered a pest.

Common earthworm

The anatomy of annelids is demonstrated through the example of the common earthworm.

Jellyfish

Jellyfish are free-swimming marine animals, a species of Cnidaria, the most ancient group of Eumetazoans.

Ozone layer

The ozone layer filters the Sun´s harmful UV radiation, therefore it is indispensable for life on Earth.

Planaria gonocephala

One of the most common types of flatworms.

Sponge

The most ancient group of animals, they live underwater, lack real tissues and body symmetry.

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