| A | B |
|---|
| A collection of two or more tissues that work together to perform a function is called | organ |
| A person has about 200 different kinds of cells, each specialized to do a particular job. How could | is multicellular |
| Arrange in order from least to most complex the following: heart, cardiac muscle, heart cell, | heart cell, cardiac muscle, heart, circulatory system |
| Explain the relation of an organ to a tissue. | Organs are made of tissues. |
| Specialization in cells makes tissues, organs, and systems | work more efficiently |
| Which of the following is the simplest unit of life? | cell |
| Which of the following is true of each of the four levels of organization of living things?8 | Each is more complex than the level below it. |
| How are cartilage and bone related? | Most bone began as cartilage. Cartilage occurs where two bones come together. |
| How are ligaments and tendons related? | Tendons connect bone to muscle while ligaments connect bone to bone. |
| What are functions of the skeletal system? | Store minerals, produce blood cells, and protect soft organs |
| What do bones store? | minerals and fat |
| What protects your spinal cord? | vertebrae |
| Where are blood cells manufactured? | in bone marrow |
