LAMARCK vs DARWIN’S THEORY OF
EVOLUTION
Charles Darwin and Jean Baptide de Lamarck have different ideas of
explaining evolution. Describe how each of them explained the evolution
of long necks of giraffes. Justify whose idea is more acceptable in
science community.
Jean Baptide de Lamarck’s explanation
At first all giraffes had short necks, so due to environmental changes.
Leaves became scarce in shorter trees, giraffes stretched their necks
more frequently, as a result the trait of a long necks acquired and
passed to offspring hence the population of giraffes have long necks.
Charles Darwin’s explanation
Giraffes produce large amount of offspring. There were a great deal of
variation amongst them, some had longer(favourable trails) necks over
other(unfavourable trails) due to environmental changes which
introduced competition among these offspring. Giraffes with longer
necks survived while those with shorter necks died out, this is natural
selection. The genotypes of long necks were then passed to offspring.
The subsequent generation of giraffes have long necks.
Darwin’s theory is accepted
Because there is evidence that genes are passed from parents to
offspring and traits are not acquired during life time of an individual
EVOLUTION
Charles Darwin and Jean Baptide de Lamarck have different ideas of
explaining evolution. Describe how each of them explained the evolution
of long necks of giraffes. Justify whose idea is more acceptable in
science community.
Jean Baptide de Lamarck’s explanation
At first all giraffes had short necks, so due to environmental changes.
Leaves became scarce in shorter trees, giraffes stretched their necks
more frequently, as a result the trait of a long necks acquired and
passed to offspring hence the population of giraffes have long necks.
Charles Darwin’s explanation
Giraffes produce large amount of offspring. There were a great deal of
variation amongst them, some had longer(favourable trails) necks over
other(unfavourable trails) due to environmental changes which
introduced competition among these offspring. Giraffes with longer
necks survived while those with shorter necks died out, this is natural
selection. The genotypes of long necks were then passed to offspring.
The subsequent generation of giraffes have long necks.
Darwin’s theory is accepted
Because there is evidence that genes are passed from parents to
offspring and traits are not acquired during life time of an individual
