Ridding the cell of material by discharging it from sacs at the cell surface is called pinocytosis
phagocytosis
exocytosis
endocytosis

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.

a compound light microscope is used to magnify objects in steps.  

hope it