EXPALNATION When adjusting the ammount of oxygen the fooodwill be preserverd longer, this happens when you cutt an apple it starts to turn brown.
I think its 60 years old idk though
Answer:
Insulin
Explanation:
Insulin and glucagon are hormones secreted by islet cells within the pancreas. They are both secreted in response to blood sugar levels, but in opposite fashion! Insulin is normally secreted by the beta cells (a type of islet cell) of the pancreas.
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