Down syndrome causes a distinct facial appearance, intellectual disability, developmental delays, and may be associated with thyroid or heart disease.
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Answer:
Anabolic reactions
Explanation:
it's known as anabolism the machanisms to synthesize all kind of complex organic molecules from simple substances, it requires energy and happens all of the time.
The catabolic reactions are the opposite of the anabolic reactions, they free energy and creates simple substances from complex molecules.
Plants produce lots of carbon dioxide with help us with our breathing.
The body system that would be directly affedted is the immune system
