Question

cells are tiny—even the largest cells in the human body are smaller than the thickness of your fingernail! alone, a single cell cannot do much. but when many similar specialized cells are organized together, they form a system called a tissue. the cells work together to allow the tissue to perform its function.
this picture shows skeletal muscle tissue in the human bicep. it is made of many skeletal muscle cells. a single skeletal muscle cell cannot produce significant movement. but when all of the skeletal muscle cells in the bicep muscle tissue contract together, they can shorten the muscle and move the arm.
complete the paragraph.
a tissue is composed of similar types of cells that are close to each other. skeletal muscle tissue contains ______ that can contract and relax

• to move
• many skeletal muscle cells
• one skeletal muscle cell

Explanation:

The text explains that tissues form from groups of specialized similar cells working together, and specifically states skeletal muscle tissue in the bicep is made of many skeletal muscle cells that contract together to move the arm, which matches the context of the blank.

Answer:

A tissue is composed of similar types of cells that are close to each other. Skeletal muscle tissue contains many skeletal muscle cells that can contract and relax to move the arm.