The Evolution Theory volume 2
The Evolution Theory volume 2
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In our eReader you can find the full English version of the book. Read The Evolution Theory volume 2 Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Evolution Theory volume 2
What reading level is The Evolution Theory volume 2 book?
To quickly assess the difficulty of the text, read a short excerpt:
Thus he recognized that the hairs which cover the lower surface of the 1 Das neu-entdeckte Geheimniss der Natur im Bau u. Der Befruchtung der Blumen, Berlin, 1793- THE ORIGIN OF FLOWERS 181 petals of the wood-cranesbill (Geranium sylvatlcum) protect the nectar of the flower from being diluted with rain, and he drew the conclusion, correct enough, though far removed from our modern ideas as regards the directly efficient cause, that the nectar was there for the insects.
He was also impressed by ...the fact that the sky-blue corolla of the forget-me-not (Myosotis patustris) has a beautiful yellow ring round the entrance to the corolla-tube, and he interpreted this as a means by which insects were shown the way to the nectar which lies concealed in the depths of the tube.
We now know that such ' honey-guides ' are present in most of the flowers visited by insects, in the form of spots, lines, or other marking, usually of conspicuous colour, that is, of a colour contrasting with tip ground colour of the flower.
What to read after The Evolution Theory volume 2?
You can find similar books in the "Read Also" column, or choose other free books by Weismann, August, 1834-1914 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Thus he recognized that the hairs which cover the lower surface of the 1 Das neu-entdeckte Geheimniss der Natur im Bau u. Der Befruchtung der Blumen, Berlin, 1793- THE ORIGIN OF FLOWERS 181 petals of the wood-cranesbill (Geranium sylvatlcum) protect the nectar of the flower from being diluted with rain, and he drew the conclusion, correct enough, though far removed from our modern ideas as regards the directly efficient cause, that the nectar was there for the insects.
He was also impressed by ...the fact that the sky-blue corolla of the forget-me-not (Myosotis patustris) has a beautiful yellow ring round the entrance to the corolla-tube, and he interpreted this as a means by which insects were shown the way to the nectar which lies concealed in the depths of the tube.
We now know that such ' honey-guides ' are present in most of the flowers visited by insects, in the form of spots, lines, or other marking, usually of conspicuous colour, that is, of a colour contrasting with tip ground colour of the flower.
What to read after The Evolution Theory volume 2?
You can find similar books in the "Read Also" column, or choose other free books by Weismann, August, 1834-1914 to read onlineMoreLess
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