wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

The present day Giraffe has a long neck. It is due to


A
Natural selection
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
Speciation
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
Isolation
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Inheritance of characters
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct options are
A Natural selection
B Speciation
D Inheritance of characters

Lamarck’s theory explains that there is an internal force in all organisms which considers the new needs or desires of the organism, to produce new structures and change the habits of the organism and that, these changes are inherited by the next generation. Darwinism explains that there exist variations in organisms or species; and because of the struggle for existence in an ever - changing environment where nature (external force) selects the fittest species to survive; only those organisms with the right variations, survive and procreate. Hence, the giraffe that had a variation which gave it a longer neck, survived better than those that did not, and all giraffes today are descendants of that first giraffe that had a longer neck.


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Darwinism
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon