циљна ћелија

A cell is the smallest self-functioning unit found in living organisms. Each cell is enclosed by an outer membrane or wall and contains genetic material (DNA) and other parts to ...

mezoderm

Biologie; Biologie cellulaire

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

Biologie; Biologie cellulaire

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

Biologie; Biologie cellulaire

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

Biologie; Biologie cellulaire

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

Biologie; Biologie cellulaire

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

Biologie; Biologie cellulaire

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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Aleksandar Dimitrijević

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Secteur d’activité/Domaine : Tourisme et hôtellerie Catégorie : Lieux célèbres

Велики кинески зид

Велики кинески зид је низ камених и земљаних утврђења у северној Кини, направљен да заштити северне границе кинеске империје против упада од стране ...