filamento

Cytoplasmic filaments intermediate in diameter (about 10 nanometers) between the microfilaments and the microtubules. They may be composed of any of a number of different proteins ...

filamento de tungsteno

Fotografi; Fotografi profesional

fuente de luz artificial con un filamento de tungsteno contenida dentro de una envoltura de vidrio.

patógeno

Biologi; Ekologi

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

Biologi; Ekologi

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

Biologi; Ekologi

An organism with a membraned cell nucleus. See Prokaryote.

organogénesis

Biologi; Ekologi

The start of organ formation in the embryo.

porosidad

Biologi; Ekologi

The amount of space within rocks or soils.

selva

Biologi; Ekologi

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 ...