AP BIOLOGY

Detailed explanation-1: -The theory of use and disuse was proposed by Lamarck. He suggested that changes in traits or characters occur in organisms depending on whether an organ is used or disused continuously.

Detailed explanation-2: -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-3: -Lamarckism was proposed by Jean-Baptiste de Monet Lamarck in the year 1744-1829. This theory was based on the principle that all the physical changes occurring in an individual during its lifetime are inherited by its offspring.

Detailed explanation-4: -Lamarckism, a theory of evolution based on the principle that physical changes in organisms during their lifetime-such as greater development of an organ or a part through increased use-could be transmitted to their offspring.

Detailed explanation-5: -He proposed an observable mechanism by which evolution had occurred, the inheritance of acquired characteristics, especially as the result of use and disuse. Lamarck’s theory therefore not only proposed that evolution had happened, it also included an explanation for the origin of evolutionary adaptations.