árbol

A diagram which depicts the hypothetical phylogeny of the taxa under consideration. The points at which lineages split represent ancestor taxa to the descendant taxa appearing at ...

árbol filogenético

Biology; General

A diagram showing the evolutionary history of organisms based on differences in amino acid sequences. Organisms with fewer differences are placed closer together while those with ...

nubes en forma de yunque

Geography; Physical geography

Rapidly rising column of air in a convectional thunderstorm will soon reach the tropopause and be forced to spread in its upper portion to form an anvil shape.

arqueado

Geography; Physical geography

A fan-shape with the 'point' at the river mouth.

cúspide

Geography; Physical geography

A triangular shape with the 'point' facing the body of water and base at the river mouth.

área industrial abandonada

Geography; Physical geography

Zona abandonada o con construcciones muy antiguas que podrían ser renovadas para nuevos usos.

privación

Geography; Physical geography

Situación en que la calidad de vida está por debajo de lo esperado para un lugar en particular en un tiempo determinado.

sequía

Geography; Physical geography

A lack of precipitation into an area for a long period of time. Modern droughts are thought to be intensified by population pressure which may help to remove water available for ...