pirámide alimenticia

pirámide alimenticia

A way of depicting energy þow in an ecosystem; shows producers (mostly plants or other phototrophs) on the Þrst level and consumers on the higher levels.

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Parte del discorso: sostantivo
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Settore/Dominio: Biologia
Categoria: Biologia cellulare
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Acronimo - Abbreviazione:

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pirámide

Matematica; Geometria

The surface of a conic solid whose base is a polygon; see regular pyramid.

pirámide

Storia; Storia dell'Egitto

Pyramids were four-sided structures that generally tapered to a point at the top. They were built of stone or mud brick to house the remains of the Egyptian king. Small ones ...

pirámide

Costruzione; Design; Architettura

In ancient Egyptian architecture, a sepulchral monument in the form of a huge stone structure with a square base and sloping sides meeting at an apex.

núcleo del átomo

Biologia; Biologia cellulare

An atom's core; contains protons and one or more neutrons (except hydrogen, which has no neutrons).

número atómico

Biologia; Biologia cellulare

The number of protons in the nucleus of an atom.

asma

Biologia; Biologia cellulare

A respiratory disorder caused by allergies that constrict the bronchioles by inducing spasms in the muscles surrounding the lungs, by causing the bronchioles to swell, or by ...

ascomicetos

Biologia; Biologia cellulare

Division of fungi that contains the yeasts and morels; ascomycetes produce an ascus (or sac) in which ascospores are produced.

selección artificial

Biologia; Biologia cellulare

The process in which breeders choose the variants to be used to produce succeeding generations.

reproducción asexual

Biologia; Biologia cellulare

A method of reproduction in which genetically identical offspring are produced from a single parent; occurs by many mechanisms, including fission, budding, and fragmentation.