Answer:
Frogs must keep their skin moist. Otherwise, oxygen can't pass easily through it and the frog suffocates.
Answer:
D
Explanation:
This my answer thanks you
Answer – Iron
According to guidelines stated in the “Guidance for Industry: Food Labeling Guide” published by the U.S Food and Drug Administration (FDA) in September 1994 and last revised in January 2013, it is required that Vitamin A, Vitamin C, Calcium, and Iron must appear on nutritional labels if they are contained in the food.
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