"The human body. It is an organism. It is made up of cells, tissues, organs, and organ systems," said Ms. Garcia to her students. "I can see tissues, my skin!" said Allie. "But how do I know I am made

"The human body. It is an organism. It is made up of cells, tissues, organs, and organ systems," said Ms. Garcia to her students. "I can see tissues, my skin!" said Allie. "But how do I know I am made of cells too?" The students carried out an experiment to prove to Allie that they were indeed made of cells. Here is a photo of their lab activity. What did they do? A) They took a piece of the skin from their fingertips and looked at the tissue using a magnifying glass. B) They dissected their finger tips! They pulled off a piece of skin and looked at it with the dissecting scope. C) They scraped the inside of their cheek and smeared the end of the toothpick on a glass slide. They added a drop of stain and then looked at the slide using the light microscope. D) They scraped the inside of their cheek and smeared the end of the toothpick on a glass slide. They added a drop of stain and then they used an IPhone to take a picture of the slide to share with the class.