porosidad

A microorganism that makes its host sick. Certain viruses, bacteria, and authoritarian flag-waving fanatics are common examples of pathogens. They tend to be parasites that weaken ...

proteína

Biológia; Ecology

Extremely complex molecules of carbon, hydrogen, nitrogen, and other elements joined in chains of amino acids (peptides). Protein constitutes the bulk of living matter, gives it ...

eucariota

Biológia; Ecology

An organism with a membraned cell nucleus. See Prokaryote.

organogénesis

Biológia; Ecology

The start of organ formation in the embryo.

selva

Biológia; Ecology

An evergreen forest growing in a wt, humid climate. Rainforest coverage prevents desertification and drought and hosts more than half the world's animal species. Every day ...

taxonomía

Biológia; Ecology

The classification of life, starting with Aristotle's attempts. Botanist Carl Linneaus worked out a system in 1735 whose primary categories are still in use. From largest to ...

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Ipar/Tárgykör: Travel Kategória: Cruise

Titanic

El barco de pasajeros que se hundió después de la legendaria chocar con un iceberg en su viaje inaugural desde Southampton Inglaterra a Nueva York en ...