Answer:
Lactase is essential for digesting lactose in milk. this enzyme is specific for this sugar. People who are lactose intolerant cannot extract energy from milk because no lactase to digest the sugar into energy. To overcome the problem, food manufacturers began to create milk without lactose.
Explanation:
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Xenografts are tissue grafts harvested from a different animal species.
Answer:
semi-permeable
Explanation:
passive transport is the movement of substances along the concentration gradient and no energy is utilized in it
Have flat bases and are often described as "puffy", "cotton-like" or "fluffy" in appearance.
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