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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Частина мови: noun
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Галузь/тема: Biology
Category: Cell biology
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pirámide

Mathematics; Geometry

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

pirámide

History; Egyptian history

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

Construction; Design; Architecture

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

Biology; Cell biology

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

número atómico

Biology; Cell biology

The number of protons in the nucleus of an atom.

asma

Biology; Cell biology

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

Biology; Cell biology

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

selección artificial

Biology; Cell biology

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

reproducción asexual

Biology; Cell biology

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