Linkage is the <em>mean's</em> of connection between things linked in series
The answer is:
C. The signal is transferred to an adjacent cell where it is interpreted.
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Explanation:
C. oxidation…the removal of 2 electrons and 1 proton to form NADP+
Explanation:
<em>The disadvantage of a closed circulatory system is that with the blood always contained in vessels, it's under higher pressure. This means it can flow faster, which is necessary for supporting the metabolic rate of more complex animals such as vertebrates. Open circulatory systems are low-pressure systems that cannot meet the needs of a fast metabolism</em>.