| A | B |
| cell membrane | part of the cell that acts like a filter, allowing certain materials to enter and exit |
| respiration | process most cells use to get energy |
| lungs | cells with hair-like structures |
| muscle tissue | a group of muscle cells make up ______ |
| muscle system and bone system | work together to move the body |
| mitochondria | produces energy for plant and animal cells |
| What is true about cells in plants and animals? | Similar cells can form different kinds of structures. |
| Flat cells | make up skin |
| tissue | a group of similar cells working together to perform the same function. |
| Nucleus | contains chromosomes made of DNA. |