"Sexual reproduction" Quotes from Famous Books
... all. The studies made by contemporary biologists, and notably by the Russian biologist Janicki, on sexual reproduction[65] have explained how this method of reproduction safeguards the homogeneity of the germ plasm in an animal species, and how it unceasingly renews the mutual contacts among the individual members of a race. Janicki writes: "The ... — The Forerunners • Romain Rolland
... Sexual reproduction is quite a distinct matter. Here, in all these cases, what is required is the detachment of two portions of the parental organisms, which portions we know as the egg and the spermatozoon. In plants it is ... — Lectures and Essays • T.H. Huxley |