who was lamark?

Answer 1

Lamarck was a French biologist who studied biology after he retired from the army. Even with failed eyesight, he studied and did a great deal for the cause of biology. He wrote a monumental book ‘ Philosophy of Zoology’ in French. His theory about evolution is called the first scientific theory and is better known as Lamarckism. This theory has four important laws. The last law became a subject of contention and was disproved by Wiesmann. Contrary to what Lamarck said the characters acquired during the lifetime of an organism are not transmitted to next generation. His thoughts however evoked discussion, spawning debate and research. The crucial points remain as whether changes in somatic cells affect germ cells in corresponding manner, as to bring about changes in genes.Incidentally this does not happen. Somatic cells can influence the physiology of germ cells but not their genetic constitution.Those who espoused his views were called Lamarkists. The most notable was the soviet biologist, Lysenko. Lamarck did stimulate thinking of contemporary biologists and even Charles Darwin. Although Darwin sneered at Lamarckian explanation in writing, he was influenced by Lamarckian thoughts.
Researches in epigenetics tend to bring us back to Lamarckian landscape.

Answer 2

Jean-Baptiste Pierre Antoine de Monet, Chevalier de Lamarck (August 1, 1744 – December 28, 1829) was a French naturalist and an early proponent of the idea that evolution occurred and proceeded in accordance with natural laws. Lamarck is however remembered today mainly in connection with his now superseded theory of heredity, the "inheritance of acquired traits" (see Lamarckism). He was also one of the first to use the term biology in its modern sense.

Answer 3

A guy who thought that development occurred during animals' lives by them wanting to change: thus a giraffe had a longer neck because it wanted to get into taller trees and it could pass this "want" onto its kiddos. This is in contrast to natural selection which said that long necked giraffes got more food and thus were healthier and had more kids who inherited genes for long necks from their long necked parents.
Communist Russia liked the idea of peoples forcing their own fate and thus promoted Lamarkism and banned Darwinism and destroyed the ability of Russian geneticists to breed better wheat and a lot of people starved.

Answer 4

Lamarck, Jean Baptiste Pierre Antoine de Monet, chevalier de (zhäN bätēst' pyĕr äNtwän'də mônā', shəvälyā' də lämärk') , 1744–1829, French naturalist. He is noted for his study and classification of invertebrates and for his introduction of evolutionary theories. After varied careers he turned his attention to botany, and recognition of his skill followed upon publication of Flore françoise (3 vol., 1778). He was elected to the Academy of Sciences, and, aided by Buffon, he traveled over Europe, under the title of royal botanist, visiting museums and collecting material for the museum of the academy. From 1793 he was professor of zoology at the Museum of Natural History. His ideas concerning the origin of species were first made public in his Système des animaux sans vertèbres (1801). He introduced the terms biology and Invertebrata and suggested the invertebrate classes Infusoria, Annelida, Crustacea, Arachnida, and Tunicata. He is also considered the founder of invertebrate paleontology. His later works were Philosophie zoologique (2 vol., 1809; tr. Zoological Philosophy, 1963) and Histoire naturelle des animaux sans vertèbres (7 vol. in 8, 1815–22). Blindness and poverty marred his later years. Lamarck's theory of evolution, or Lamarckism, asserts that all life forms have arisen by a continuous process of gradual modification throughout geologic history. To explain this process he cited the then generally accepted theory of acquired characteristics, which held that new traits in an organism develop because of a need created by the environment and that they are transmitted to its offspring. Although the latter hypothesis was disputed during Lamarck's lifetime by Cuvier and others and was rejected altogether as the principles of heredity were established, Lamarck's theory of evolution was an important forerunner of the work of Charles Darwin, who recognized a modified influence of environment in evolutionary processes..

Answer 5

Jean Baptiste Pierre Antoine de Monet, Chevalier de Lamarck was born on August 1, 1744, in the village of Bazentin-le-Petit in the north of France. He was the youngest of eleven children in a family with a centuries-old tradition of military service; his father and several of his brothers were soldiers. The young Lamarck entered the Jesuit seminary at Amiens around 1756, but not long after his father's death, Lamarck rode off to join the French army campaigning in Germany in the summer of 1761; in his first battle, he distinguished himself for bravery under fire and was promoted to officer. After peace was declared in 1763, Lamarck spent five years on garrison duty in the south of France, until an accidental injury forced him to leave the army. After working as a bank clerk in Paris for a while, Lamarck began to study medicine and botany, at which he rapidly became expert; in 1778 his book on the plants of France, Flore Française, was published to great acclaim, in part thanks to the support of Buffon.

Answer 6

Lamarck was a scientist who gave the term biology along with Trivaranes . he also gave thoery of inheritence of acquired characters according to which the organ in continued use is strenghtens whereas the organ that is not used is degenerated ,

Answer 7

In addition to the above, Lamarck was a taxonomist who described and named hundreds of new species of animals and plants. In the mollusca alone (my specialty) there are at least a couple of hundred species bearing his name as author. There are also a number of species named after him. A few examples:

http://www.oceanlight.com/lightbox.php?sp=cypraea_lamarckii

http://www.robsplants.com/plants/DigitLamar.php

http://www.jaxshells.org/804d.htm

http://commons.wikimedia.org/wiki/Amelanchier_lamarckii

Answer 8

He proposed the theory of evolution before Darwin.

Answer 9

pfather of taxonomy gave 5 principles for classification of plants&animals