Select the BEST word for each sentence. Be sure to read the sentence carefully.
1. Organs are made of a group of
• working together to carry out a
job.
2. Cell parts work together to carry out all the life functions of
<<
3. Biological macromolecules are made of
.
4. Cell parts are made of
-
5. The small intestine, the heart, and the lungs are examples of
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