Determine the significance of plasmids for bacteria. they in meiosis and in the manipulation of the plasmids of their host organisms. they in mitosis and in the manipulation of their genome with the gene of their requirement. they in reproduction, antibiotic resistance, virulence and competition with other bacteria.

Which statement best explains lamarck's theory of acquired characteristics as it relates to the neck length of giraffes?

a) the dna of the giraffe coded for longer necks in some individuals.

b) the variation in giraffe neck sizes led to some being more fit and able to survive.

c) giraffes have always had long necks and this is not a characteristic that has ever changed.

d) giraffes slowly stretched their necks to reach leaves higher in the tree and over time their necks got longer.