The Origin of Species by Means of Natural Selection: Or, the Preservation of Favored Races in the Struggle for Life, Volumen1D. Appleton, 1898 |
Dentro del libro
Resultados 1-5 de 41
Página xiii
... adapted for dividing , and the grinders flat , and serviceable for masticating the food ; since they were not made for the sake of this , but it was the result of accident . And in like manner as to the other parts in which there ...
... adapted for dividing , and the grinders flat , and serviceable for masticating the food ; since they were not made for the sake of this , but it was the result of accident . And in like manner as to the other parts in which there ...
Página xix
... adapted to its peculiar habits of life . The work , from its powerful and brilliant style , though displaying in the earlier editions little accurate knowledge and a great want of scientific caution , imme- diately had a very wide ...
... adapted to its peculiar habits of life . The work , from its powerful and brilliant style , though displaying in the earlier editions little accurate knowledge and a great want of scientific caution , imme- diately had a very wide ...
Página 3
... and tongue , so admirably adapted to catch insects under the bark of trees . In the case of the mistletoe , which draws its nourishment from certain trees , which has seeds that must be transported by certain birds , and. INTRODUCTION . 3.
... and tongue , so admirably adapted to catch insects under the bark of trees . In the case of the mistletoe , which draws its nourishment from certain trees , which has seeds that must be transported by certain birds , and. INTRODUCTION . 3.
Página 94
... adapted for div- ing , allows it to compete with other aquatic insects , to hunt for its own prey , and to escape serving as prey to other animals . The store of nutriment laid up within the seeds of many plants seems at first sight to ...
... adapted for div- ing , allows it to compete with other aquatic insects , to hunt for its own prey , and to escape serving as prey to other animals . The store of nutriment laid up within the seeds of many plants seems at first sight to ...
Página 100
... adapted forms could not freely enter , we should then have places in the economy of nature which would assuredly be better filled up , if some of the original inhabitants were in some manner modified ; for , had the area been open to ...
... adapted forms could not freely enter , we should then have places in the economy of nature which would assuredly be better filled up , if some of the original inhabitants were in some manner modified ; for , had the area been open to ...
Otras ediciones - Ver todas
Términos y frases comunes
adapted advantage allied analogous animals and plants appear Asa Gray beak become bees believe birds breeds caudicle cause cells characters climate closely colour common crossed cuckoo degree descendants developed difficulty distinct species disuse divergence domestic animals domestic races doubt effects eggs existence extinct extremely facts favourable females flowers forms Fritz Müller genera genus giraffe gradations greater number groups habits Hence hermaphrodites hive-bee important increase inhabitants inherited insects instance instincts intercrossing intermediate kind lamellæ large number larger genera larvæ less males manner Melipona Mivart modified natural selection naturalists nearly nest occasionally offspring organisation organs origin Origin of Species parent perfect period pigeons pollen pollen-grains present preserved prey principle probably produced progenitor quadrupeds rank rarely Red Grouse relation remarked resemble rock-pigeon seeds sexes sexual selection slight stamens striped structure struggle supposed swimbladder tend tendency tion tree variability variations varieties vary widely wings young