The structures that make up a cell are called

Within cells, the cytoplasm is made up of a jelly-like fluid, called the cytosol, and other structures that surround the nucleus. Cytoskeleton. The cytoskeleton is a network of long fibers that make up the cell's structural framework

cytoskeleton is the correct answer

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.