zakon

E=IR; I=E/R; R=E/I; Where E = Voltage impressed on a circuit, I = current flowing in a circuit and R = circuit resistance. Ohm's Law is used for calculating voltage drop, fault ...

avogadrov zakon

Энергия; Природный газ

See LAWS.

tipologija

Археология; Эволюция

(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

Археология; Эволюция

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

spolni hromozom

Археология; Эволюция

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

Археология; Эволюция

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

Археология; Эволюция

The biological study of fossils.

ćelija

Археология; Эволюция

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 ...