The Plant, An Illustration of the Organic Life of the Animal
The book The Plant, An Illustration of the Organic Life of the Animal was written by author Coultas, Harland, D. 1877 Here you can read free online of The Plant, An Illustration of the Organic Life of the Animal book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Plant, An Illustration of the Organic Life of the Animal a good or bad book?
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In vivipar- ous animals, however, the eggs undergo their early changes in the body of the mother, that is to say, the embryo de- velops in the uterus, and bursts the membrane of the egg, which it leaves there, coming out of the body of the mother naked and already formed ; whereas in oviparous animals, the egg is laid with its membranes and the germ which it contains, and the development of the embryo is extra- uterine. Production from eggs must therefore be considered as a universal characteri...stic of the animal kingdom. Even animals which propagate by gemmiparous and fissiparous GENERAL CONSIDEEATIONS. 127 reproduction, also lay eggs. Tte former are only additional means employed by nature to secure tlie perpetuation of the species, super-added to tlie usual method of propagation. Now plants have sexes or sexual organs as well as ani- mals. The female sexual organs in plants are called Fig. 24. Fig. 25. Fig. 24. A pistil exhibited in section to show tiie young oTnles d, attaclied to the placenta or walls of the ovary a, and contained within its cavity, c.
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