2 answers:
Answer:
A
Explanation:
Tissues are made of specialized cells, organs are made of tissue, an organ system is a group of organs that work together.
Answer:
A
Explanation:
From smallest to largest is A
Cells make up tissues, tissues make up organs, organs make up organ system, and this organ system makes up a whole organism.
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Your answer of your question is,
Explanation:
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