the basic building block of all living things
people are made of millions of cells just like a building is made of brick.
Which of these shows a cell?
A living thing - a person, a plant, or a unicellular thing
What kind of organisms do you see in this picture?
Which of the following is not an organism?
means one cell - some examples are amoebas, bacteria, plankton, flagella, paramecium, and euglena
Unicellular organisms can live by themselves. they can do everything within the one cell to live
Bacteria or viruses from a sneeze can "live" on a table and make other people sick
Which of the following is unicellular?
means made of many cells - some examples are people, plants, animals, and fungi (decomposers)
Multicellular organisms' cells can not stay alive by itself. It needs all the other cells in the organism.
What multicellular organisms do you see in this picture?
A skin cell can not stay alive if it is brushed off of the body. A cell from heart tissue can not live by itself.
Which of the following are multicellular?
Tissue is a group of similar cells that work together
a group of tissues that work together to do a job
a group of organs that work together to do a job
The building blocks of all life are called
A group of similar cells is called...
A group of tissues that work together is called...
A group of organs that work together to do a job are called..
Do you understand cells?