Question

answer this question please in 50words explain each short note

Answer 1

A. Lamarckism (or Lamarckian inheritance) is the hypothesis that an organism can pass on characteristics that it has acquired during its lifetime to its offspring. It is also known as the heritability of acquired characteristics or soft inheritance.

B.Darwin's theory. In 1859, Charles Darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. He defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".

C. Embryology is the branch of biology that studies the prenatal development of gametes, fertilization, and development of embryos and fetuses
The living animals which possess the characteristics of two different groups of animals are known as connecting links. ... Lung fish: - Lung fish possesses the characters of both the fishes and amphibians. ... Thus lung fish acts as a connecting link between fish and amphibians.
D.