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The fetus is surrounded by a protective structure called the placenta.
Phosphorus
A chemical element with the symbol P and atomic number 15, essential for life, involved in various biological processes, including energy transfer and the formation of bones and teeth.
Trace Element
An element required by an organism in very small amounts.
Iron
A metallic element essential for human life; involved in oxygen transport within the bloodstream.
Obesity
Excess accumulation of body fat; a person is considered obese if the body mass index (BMI) is 30 or higher.
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