The Iron in the molecule binds to the oxygen. Carbon Dioxide does not bind to a cell but rather, is carried in the blood as bicarbonate.
Answer:
A
Explanation:
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D is the answer. Mutations can cause MANY problems.
Absolute time measurements can be used to calibrate the relative time scale, producing an integrated geologic or <em>"geochronologic"</em> time scale. The overall duration and relative length of these large geologic intervals is unlikely to change much, but the precise numbers may "wiggle" a bit as a result of new data.
