ciudades

ciudades

Urban systems whose dominant members occupy various niches, some of which compete. Rather parasitic, the large ones, in that they take from all over without giving, bereft as they are of natural producers. Because of their exclusive emphasis on growth and productivity, they are locked into an ecological immaturity that wastes resources and widely and indiscriminately pollutes. For all these reasons they are as unsustainable as the civilizations that spawn them.

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Valdkond/domeen: Biology
Category: Ecology
Company: Terrapsych.com
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trayecto de ciudad a ciudad

Travel; Air travel

Se refiere a las tarifas entre dos ciudades; servicio entre dos ciudades únicamente, sin ningún segmento adicional o continuación.

ciudad preindustrial

Sociology; General sociology

Una ciudad con sólo unos pocos miles de personas que viven dentro de sus fronteras y se caracteriza por un sistema de clases relativamente cerrada y movilidad limitada.

ciudades modelo

Political systems; General

Un polémico programa aprobado por el Congreso estadounidense en 1966 que trataba de reconstruir los barrios pobres enteros en ciudades seleccionadas.

grandes ciudades

Geography; Geophysics

Large cities are cities that have large populations relative to a country's total population. Although there are no established international standards, generally a city with 5% ...

ciudad industrial

Sociology; General sociology

Una ciudad que se caracteriza por el tamaño relativamente grande, la competencia abierta, un sistema de clase abierta, y la especialización en la elaboración de la fabricación de ...

patógeno

Biology; Ecology

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

Biology; 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

Biology; Ecology

An organism with a membraned cell nucleus. See Prokaryote.

organogénesis

Biology; Ecology

The start of organ formation in the embryo.

porosidad

Biology; Ecology

The amount of space within rocks or soils.

selva

Biology; 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 ...