Match each item with the building block that describes it.
1. the femur bone Blank 1 Вопрос 1 organ systemmoleculetissuecellorgan 2. the epidermis Blank 2 Вопрос 1 organ systemmoleculetissuecellorgan 3. all the bones in the body Blank 3 Вопрос 1 organ systemmoleculetissuecellorgan 4. osteocyte Blank 4 Вопрос 1 organ systemmoleculetissuecellorgan 5. keratin Blank 5 Вопрос 1 organ systemmoleculetissuecellorgan