Definition of Selection. Meaning of Selection. Synonyms of Selection
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Definition of Selection
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Natural selection 10. (Mus.)
(a) Produced by natural organs, as those of the human
throat, in distinction from instrumental music.
(b) Of or pertaining to a key which has neither a flat
nor a sharp for its signature, as the key of C major.
(c) Applied to an air or modulation of harmony which
moves by easy and smooth transitions, digressing but
little from the original key. --Moore (Encyc. of
Natural day, the space of twenty-four hours. --Chaucer.
Natural fats, Natural gas, etc. See under Fat, Gas.
Natural Harmony (Mus.), the harmony of the triad or common
Natural history, in its broadest sense, a history or
description of nature as a whole, incuding the sciences of
botany, zo["o]logy, geology, mineralogy,
paleontology, chemistry, and physics. In recent
usage the term is often restricted to the sciences of
botany and zo["o]logy collectively, and sometimes to the
science of zoology alone.
Natural law, that instinctive sense of justice and of right
and wrong, which is native in mankind, as distinguished
from specifically revealed divine law, and formulated
Natural modulation (Mus.), transition from one key to its
Natural order. (Nat. Hist.) See under order.
Natural person. (Law) See under person, n.
Natural philosophy, originally, the study of nature in
general; in modern usage, that branch of physical science,
commonly called physics, which treats of the phenomena
and laws of matter and considers those effects only which
are unaccompanied by any change of a chemical nature; --
contrasted with mental and moral philosophy.
Natural scale (Mus.), a scale which is written without
flats or sharps. Model would be a preferable term, as less
likely to mislead, the so-called artificial scales (scales
represented by the use of flats and sharps) being equally
natural with the so-called natural scale
Natural science, natural history, in its broadest sense; --
used especially in contradistinction to mental or moral
Natural selection (Biol.), a supposed operation of natural
laws analogous, in its operation and results, to designed
selection in breeding plants and animals, and resulting in
the survival of the fittest. The theory of natural
selection supposes that this has been brought about mainly
by gradual changes of environment which have led to
corresponding changes of structure, and that those forms
which have become so modified as to be best adapted to the
changed environment have tended to survive and leave
similarly adapted descendants, while those less perfectly
adapted have tended to die out though lack of fitness for
the environment, thus resulting in the survival of the
fittest. See Darwinism.
Natural system (Bot. & Zo["o]l.), a classification based
upon real affinities, as shown in the structure of all
parts of the organisms, and by their embryology.
It should be borne in mind that the natural system
of botany is natural only in the constitution of its
genera, tribes, orders, etc., and in its grand
Natural theology, or Natural religion, that part of
theological science which treats of those evidences of the
existence and attributes of the Supreme Being which are
exhibited in nature; -- distinguished from revealed
religion. See Quotation under Natural, a., 3.
Natural vowel, the vowel sound heard in urn, furl, sir,
her, etc.; -- so called as being uttered in the easiest
open position of the mouth organs. See Neutral vowel,
under Neutral and Guide to Pronunciation, [sect] 17.
Syn: See Native. Sexual selectionSexual Sex"u*al, a. [L. sexualis, fr. sexus sex: cf. F.
Of or pertaining to sex, or the sexes; distinguishing sex;
peculiar to the distinction and office of male or female;
relating to the distinctive genital organs of the sexes;
proceeding from, or based upon, sex; as, sexual
characteristics; sexual intercourse, connection, or commerce;
sexual desire; sexual diseases; sexual generation.
Sexual dimorphism (Biol.), the condition of having one of
the sexes existing in two forms, or varieties, differing
in color, size, etc., as in many species of butterflies
which have two kinds of females.
Sexual method (Bot.), a method of classification proposed
by Linn[ae]us, founded mainly on difference in number and
position of the stamens and pistils of plants.
Sexual selection (Biol.), the selective preference of one
sex for certain characteristics in the other, such as
bright colors, musical notes, etc.; also, the selection
which results from certain individuals of one sex having
more opportunities of pairing with the other sex, on
account of greater activity, strength, courage, etc.;
applied likewise to that kind of evolution which results
from such sexual preferences. --Darwin.
In these cases, therefore, natural selection seems
to have acted independently of sexual selection.
Meaning of Selection from wikipedia
to: In science: Selection
(biology), also called natural selection
, in genetics
- The Selection
is a young adult novel
C**** first published
14, 2012 by HarperCollins. It is the first
in a five-book series, followed...
- the term "natural selection
it with artificial selection
in his view is intentional, whereas natural selection
is not. Variation...
- In natural selection
, negative selection
or purifying selection
is the selective removal
that are deleterious. This can result
- In computer
sort is an in-place comparison sorting
algorithm. It has an O(n2) time complexity, which makes
bias is the bias introduced
by the selection
of individuals, groups, or data for analysis
in such a way that proper randomization
is not achieved...
- In po****tion genetics, directional selection
, or positive selection
is a mode of natural selection
an extreme phenotype
- ****ual selection
is a mode of natural selection
in which members
of one biological
**** choose mates
of the other
**** to mate with (inter****ual selection
- Evolution occurs
when evolutionary processes
such as natural selection
(including ****ual selection
) and genetic drift
act on this variation, resulting
- In computer
science, a selection algorithm
is an algorithm
the kth smallest number
in a list or array; such a number
the kth order...
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