Giraffes evolved over many generations to have long necks. giraffes that had longer necks were more likely to survive than giraffes with shorter necks because they had better access to food. this is an example of . giraffes are also vertebrates, like humans. in fact, despite their different neck sizes, humans and giraffes have exactly seven vertebrae bones in their neck. this similarity suggests human and giraffe necks are

Natural Selection and Homologous Structure.

Explanation: The ancestors of the giraffe had small necks and when the short heighted bushes and shrubs were finished by them then there was evolution of giraffe's neck.

The neck of the giraffe became long and long neck giraffes were naturally selected.

Despite the long neck sizes of giraffes and short neck sizes of human beings the vertebrae are same in both the organism due to homologous structure.

Natural Selection and Homologous Structure.

Explanation:

maybe because its impossible for balloons to lift a whole entire house.