Levels of Organization
Unicellular/Multicellular
Prokaryotic/Eukaryotic
All living things are made of cells. Some are only made of one single cell.
Which of the following are SMALLER than a cell?
(Select all that apply)
What are tissues made of?
The skin is an organ which is made of billions of cells that are grouped together to form ________.
Not all living things have tissues, organs, and/or organ systems.
Which of the following is the MOST COMPLEX?