makroevolucija

makroevolucija

The combination of events associated with the origin, diversification, extinction, and interactions of organisms which produced the species that currently inhabit the Earth. Large scale evolutionary change such as the evolution of new species (or even higher taxa) and extinction of species.

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Kép hozzáadása

Szófaj: noun
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Ipar/Tárgykör: Biológia
Kategória: Sejtbiológia
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mezoderm

Biológia; Sejtbiológia

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

Biológia; Sejtbiológia

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

Biológia; Sejtbiológia

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

Biológia; Sejtbiológia

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

Biológia; Sejtbiológia

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. ...

latelarni koren

Biológia; Sejtbiológia

Roots extending away from the main (or taproot) root.

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Библија

The Bible is the various collections of sacred scripture of the various branches of Judaism and Christianity. The Bible, in its various editions, is ...