are secreted by cells infected with viruses, alerting neighboring cells and protecting them from becoming infected.
A. Complement system globulins
B. Interferons
C. Granzymes
D. Pyrogens
E. Perforins

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consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.

answer: dna

because all cells have genes

it is a limiting nutrient limited by a single nutrient in the ecosystem, & the single goes very slow.