LIFE SCIENCE

Detailed explanation-1: -Unlike Darwin, Lamarck believed that living things evolved in a continuously upward direction, from dead matter, through simple to more complex forms, toward human “perfection.” Species didn’t die out in extinctions, Lamarck claimed. Instead, they changed into other species.

Detailed explanation-2: -Lamarckism is a theory named after French naturalist Jean-Baptiste Lamarck (1744-1829). It proposes that animals acquire characteristics based on use or disuse during their lives, rather than through hard-coded genetic changes.

Detailed explanation-3: -work of Lamarck He enunciated the law of use and disuse, which states that when certain organs become specially developed as a result of some environmental need, then that state of development is hereditary and can be passed on to progeny.

Detailed explanation-4: -Darwin’s theory of evolution claimed hereditary traits were due to a process called natural selection, whereas Lamarck’s theory of evolution and Lamarckism claimed that hereditary characteristics were acquired during a lifetime from environmental challenges, and then passed onto offspring.

Detailed explanation-5: -The theory of evolution is a shortened form of the term “theory of evolution by natural selection, ‘’ which was proposed by Charles Darwin and Alfred Russel Wallace in the nineteenth century.