The body uses atoms in different ways to accomplish different tasks. for example, one portion of the body's calcium supply strengthens bones, whereas another portion combines with proteins to stimulate blood clotting after tissue injury. which of the statements that follow provides the most logical chemical explanation of calcium's ability to perform such different functions?

answer; polycythemia is the correct answer;

the answer is d (apex) good luck : ))

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

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