киселина

киселина

A substance that increases the number of hydrogen ions in a solution.

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Pramonės šaka / sritis: Biology
Category: Cell biology
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фенолска киселина

Agriculture;

било које из низа једињења која су одједном деривати и фенола и неког од припадника масних ...

таложење киселина

Pollution control; Air pollution

A comprehensive term for the various ways acidic compounds precipitate from the atmosphere and deposit onto surfaces. It can include: 1) wet deposition by means of acid rain, fog, ...

mezoderm

Biology; Cell biology

The middle layer of cells in embryonic development; gives rise to muscles, bones, and structures associated with reproduction. The middle embryonic tissue layer. Cells and ...

melanin

Biology; Cell biology

A pigment that gives the skin color and protects the underlying layers against damage by ultraviolet light; produced by melanocytes in the inner layer of the epidermis.

mejoza

Biology; Cell biology

Cell division in which the chromosomes replicate, followed by two nuclear divisions. Each of the resulting gametes (in animals, spores in plants) receives a haploid set of ...

megaspore

Biology; Cell biology

Four haploid cells produced by meiosis in the ovule of a þower. Usually, three of these cells degenerate, with the remaining cell becoming the female gametophyte phase of the ...

moždina

Biology; Cell biology

1. A term referring to the central portion of certain organs; e. G. , the medulla oblongata of the brain and the adrenal medulla, which synthesizes epinephrine and norepinephrine. ...

makroevolucija

Biology; Cell biology

The combination of events associated with the origin, diversification, extinction, and interactions of organisms which produced the species that currently inhabit the Earth. Large ...

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Pramonės šaka / sritis: Holiday Category: Festivals

Први април

Прославља се 1. априла сваке године, дан шале је време када људи, а све више и компаније, изводе све врсте добронамерних или смешних шала, подвала и ...