Video Transcript
This is a picture of heart tissue
under a microscope. What is the tissue made of?
To answer this question, we first
need to define a tissue before identifying what tissues are made from. A tissue is a group of cells that
have the same structure and perform the same function. So, we can see from the definition
of a tissue that a tissue is made of cells. Now, let’s check this information
by considering the levels of organization within the human body.
The human body is made from body
systems, such as the circulatory system. Body systems are made from organs,
such as the heart. Organs are made from tissues, such
as heart tissue. And tissues are made from
cells. So, the correct answer is
cells. Heart tissue is made from
cells.