How does a toxin enter the cell membrane?

The toxin bind to receptors on the surface of susceptible cell and enter them by endocytic uptake. ... With the exception of pore-forming proteins toxins which compromise the permiability barrier of the target cell plasma membrane, the bacterial toxin act catalytically to modify substrates within mammalian cells.

for 8 am not sure maybe yes?

for 9 if it is asking if the male is more or less it would be less

hope i even just a little : )

the offspring would all be white. if the parents are both white flowers then they have the genotype rr, which when crossed results in an all white punnet square.