Nyd den ubegrænsede adgang til tusindvis af spændende e- og lydbøger - helt gratis
Fakta
Please note: This is a companion version & not the original book. Book Preview:
#1 Charles Darwin was a botanist, and he grew up in a family that had a special, tender feeling for plants. He grew up in a house with extensive gardens filled not only with flowers but with a variety of apple trees crossbred for increased vigor.
#2 Darwin was not a botanist, but he was preeminently an investigator who was concerned with the how and why of plant structure and behavior. He was not a mere avocation or hobby for him, as it was for so many in the Victorian age.
#3 Darwin’s theory of evolution was based on the idea that flowers were self-fertilized, but he began to question this theory when he found that the ratio of pins to thrums was exactly one to one in primrose flowers. He suspected that these flowers were in the process of becoming female flowers.
#4 Darwin’s book, The Different Forms of Flowers on Plants of the Same Species, was about the different styles of flowers and how they were adapted for outbreeding. He concluded that heterostyly, in which plants have styles of different length, was a special device that had evolved to facilitate outbreeding.
© 2022 IRB Media (E-bog): 9798822530065
Release date
E-bog: 4. juni 2022
Over 600.000 titler
Download og nyd titler offline
Eksklusive titler + Mofibo Originals
Børnevenligt miljø (Kids Mode)
Det er nemt at opsige når som helst
For dig som vil prøve Mofibo.
1 konto
20 timer/måned
Eksklusivt indhold hver uge
Fri lytning til podcasts
Gem ubrugt tid
Ingen binding
For dig som lytter og læser ofte.
1 konto
100 timer/måned
Eksklusivt indhold hver uge
Fri lytning til podcasts
Ingen binding
For dig som lytter og læser ubegrænset.
1 konto
Ubegrænset adgang
Eksklusivt indhold hver uge
Fri lytning til podcasts
Ingen binding
For dig som ønsker at dele historier med familien.
2-6 konti
100 timer/måned pr. konto
Fri lytning til podcasts
Kun 39 kr. pr. ekstra konto
Ingen binding
2 konti
179 kr. /månedDansk
Danmark