Darwin's finches and Polymorphism (biology)

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Difference between Darwin's finches and Polymorphism (biology)

Darwin's finches vs. Polymorphism (biology)

Darwin's finches (also known as the Galápagos finches) are a group of about fifteen species of passerine birds. Polymorphism in biology and zoology is the occurrence of two or more clearly different morphs or forms, also referred to as alternative phenotypes, in the population of a species.

Adaptation

In biology, adaptation has three related meanings.

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Aril

An aril (pronounced), also called an arillus, is a specialized outgrowth from a seed that partly or completely covers the seed.

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Bird

Birds, also known as Aves, are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.

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Charles Darwin

Charles Robert Darwin, (12 February 1809 – 19 April 1882) was an English naturalist, geologist and biologist, best known for his contributions to the science of evolution.

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David Lack

David Lambert Lack FRS (16 July 1910 – 12 March 1973) was a British evolutionary biologist who made contributions to ornithology, ecology and ethology.

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Ecological niche

In ecology, a niche (CanE, or) is the fit of a species living under specific environmental conditions.

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Emberizidae

Emberizidae is a family of seed-eating passerine birds with distinctively finch-like bills.

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Española cactus finch

The Española cactus finch (Geospiza conirostris), is a species of bird in the tanager family Thraupidae.

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Evolution

Evolution is change in the heritable characteristics of biological populations over successive generations.

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Galápagos Islands

The Galápagos Islands (official name: Archipiélago de Colón, other Spanish name: Las Islas Galápagos), part of the Republic of Ecuador, are an archipelago of volcanic islands distributed on either side of the equator in the Pacific Ocean surrounding the centre of the Western Hemisphere, west of continental Ecuador.

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Linkage disequilibrium

In population genetics, linkage disequilibrium is the non-random association of alleles at different loci in a given population.

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Natural selection

Natural selection is the differential survival and reproduction of individuals due to differences in phenotype.

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Opuntia

Opuntia, commonly called prickly pear, is a genus in the cactus family, Cactaceae.

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Panmixia

Panmixia (or panmixis) means random mating.

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Passerine

A passerine is any bird of the order Passeriformes, which includes more than half of all bird species.

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Peter and Rosemary Grant

Peter Raymond Grant,,, and Barbara Rosemary Grant,,, are a British couple who are evolutionary biologists at Princeton University.

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Sympatric speciation

Sympatric speciation is the process through which new species evolve from a single ancestral species while inhabiting the same geographic region.

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