The next bone healing stage is called the hard callus<span> stage.This transformation occurs when bone forming cells called osteoblasts travel across the </span><span>soft callus.</span>
Answer:
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The cell theory is fundamental to all living things.
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Answer:
The exchange of biological material between tissues and blood vessels.
Explanation:
Capillaries are extensions of blood vessels but are much thinner in diameter. They are mostly found in tissue that is highly metabolic like the kidneys and liver which require high perfusion and exchange rate of metabolic molecules between tissue and blood.
