He study of cells has been limited by their small size, and so they were not seen and described until 1665, when robert hooke first looked at dead cells from an oak tree. his contemporary, anton van leeuwenhoek, crafted lenses; and with the improvements in optical aids, a new world was opened. magnification and resolving power limit what can be seen. explain the difference.

The table lists the observations students made about four specimens under a microscope. based on these observations, what specimens did the students examine? animal plant virus prokaryote cell membrane present ribosomes present lysosomes present nuclear membrane present cell wall present ribosomes present nuclear membrane absent cell wall present ribosomes present nucleus present large vacuole present reproduces inside of a cell nucleus absent rna present 2019 edmentum all rights reserved intl