грудни коша

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

Biyoloji; Hücre biyolojisi

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

Biyoloji; Hücre biyolojisi

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

Biyoloji; Hücre biyolojisi

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

Biyoloji; Hücre biyolojisi

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

Biyoloji; Hücre biyolojisi

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

Terimler Haberlerde

Öne Çıkan Terimler

Dragan Zivanovic

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Тереза Сканлан

The winner of the 2011 Miss America pageant. Scanlan, A 17-year-old and recent high school graduate from the western Nebraska town of Gering captured ...