If an anthropod does not change it's form except for increasing its size, this change would be considered an incomplete metamorphosis.
first generation maybe im not a big biology freak and the second might be second generation im not super sure but srry if its not but its worth the shot :p
The gram stain differentiates two types of bacteria based on the composition of their cell walls. it uses a primary stain, a mordant, a decolorized, and a secondary stain to allow for the visualization of these structural differences.
Answer:
the answer is genetic drifts.