Tiny little things warm up

There is an organization to life, from small to large:  Organelle, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere.  We have reviewed a little chemistry, learned about the molecules that make living things,  and learned about ecosystems, species, populations, communities, Now we are going to learn about the structure and function of cells.  Go to the following link and explore the relative size and cells.  Then answer the warm-up questions.

https://learn.genetics.utah.edu/content/cells/scale/