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biogenetic law

biogenetic law, in biology, a law stating that the earlier stages of embryos of species advanced in the evolutionary process, such as humans, resemble the embryos of ancestral species, such as fish. The law refers only to embryonic development and not to adult stages; as development proceeds, the embryos of different species become more and more dissimilar. An early form of the law was devised by the 19th-century Estonian zoologist K. E. von Baer, who observed that embryos resemble the embryos, but not the adults, of other species. A later, but incorrect, theory of the 19th-century German zoologist Ernst Heinrich Haeckel states that the embryonic development (ontogeny) of an animal recapitulates the evolutionary development of the animal's ancestors (phylogeny).

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"biogenetic law." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 25 May. 2017 <http://www.encyclopedia.com>.

"biogenetic law." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (May 25, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/biogenetic-law

"biogenetic law." The Columbia Encyclopedia, 6th ed.. . Retrieved May 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/biogenetic-law

biogenetic law

biogenetic law The early stages of development in animal species resemble one another, the species diverging more and more as development proceeds. The law was formulated by the Estonian embryologist of German origin K. E. von Baer (1792–1876).

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"biogenetic law." A Dictionary of Ecology. . Encyclopedia.com. 25 May. 2017 <http://www.encyclopedia.com>.

"biogenetic law." A Dictionary of Ecology. . Encyclopedia.com. (May 25, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/biogenetic-law-0

"biogenetic law." A Dictionary of Ecology. . Retrieved May 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/biogenetic-law-0

biogenetic law

biogenetic law Law formulated by the embryologist E. K. von Baer (1792–1876) stating that the early stages of development in animal species resemble one another, the species diverging more and more as development proceeds.

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"biogenetic law." A Dictionary of Earth Sciences. . Encyclopedia.com. 25 May. 2017 <http://www.encyclopedia.com>.

"biogenetic law." A Dictionary of Earth Sciences. . Encyclopedia.com. (May 25, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/biogenetic-law

"biogenetic law." A Dictionary of Earth Sciences. . Retrieved May 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/biogenetic-law

biogenetic law

biogenetic law The early stages of development in animal species resemble one another, the species diverging more and more as development proceeds. The law was formulated by the embryologist E. K. von Baer (1792–1876).

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"biogenetic law." A Dictionary of Zoology. . Encyclopedia.com. 25 May. 2017 <http://www.encyclopedia.com>.

"biogenetic law." A Dictionary of Zoology. . Encyclopedia.com. (May 25, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/biogenetic-law-1

"biogenetic law." A Dictionary of Zoology. . Retrieved May 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/biogenetic-law-1

biogenetic law

biogenetic law (recapitulation theory) Principle that the stages of embryonic development reflect the stages of an organism's evolutionary development. See also evolution

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"biogenetic law." World Encyclopedia. . Encyclopedia.com. 25 May. 2017 <http://www.encyclopedia.com>.

"biogenetic law." World Encyclopedia. . Encyclopedia.com. (May 25, 2017). http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/biogenetic-law

"biogenetic law." World Encyclopedia. . Retrieved May 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/biogenetic-law