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?
What was your score?
Which tissues were necessary to build a heart?
Which tissues were necessary to build lungs?
Which tissues were necessary to build a brain?
Which tissues were necessary to build a knee joint?
Which tissues were necessary to build skin?
Which tissues are found in more than one organ?
Why do you think these tissues are in more than one organ?