teški metali

teški metali

Metals with a high relative atomic mass, such as lead, copper, zinc, and mercury. Many of them are toxic.

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Sõnaliik: noun
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Valdkond/domeen: Archaeology
Category: Evolution
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metali

Jewelry; General jewelry

Fine jewelry and jewelry settings are crafted of metal. Common metals include gold, silver, platinum and titanium. Metals can be used in pure form or combined to increase ...

teški metal

Natural environment; Coral reefs

A metal having a specific gravity of 5.0 or greater. Heavy metals are generally toxic to organisms in relatively low concentrations, and tend to accumulate in the food web. ...

plemeniti metali

Jewelry; General jewelry

Valuable metals often used to make coins or jewelry.

tipologija

Archaeology; Evolution

(1) The definition of classificatory groups by phenetic similarity to a "type" specimen. A species, for example, might be defined as all individuals less than x phenetic units ...

mimikrija, imitiranje, podražavanje

Archaeology; Evolution

A case in which one species looks more or less similar to another species. See Batesian mimicry and Müllerian mimicry.

spolni hromozom

Archaeology; Evolution

The chromosome or chromosomes that influence sex determination. In mammals, including humans, the X and Y chromosomes are the sex chromosomes (females are XX, males XY). Compare ...

metabolizam

Archaeology; Evolution

The chemical processes that occur in a living organism in order to maintain life. There are two kinds of metabolism: constructive metabolism, or anabolism, the synthesis of the ...

paleobiologija

Archaeology; Evolution

The biological study of fossils.

ćelija

Archaeology; Evolution

The basic structural and functional unit of most living organisms. Cell size varies, but most cells are microscopic. Cells may exist as independent units of life, as in bacteria ...