Answer:
A) myoglobin binds the oxygen by means of iron
B)myoglobin would be an effective O_2-transport in other tissues
Explanation:
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The answer to this is: C) a factor that may affect an experiment or investigation. This is the best answer. A and B can be eliminated. D describes a controlled variable which is more specific than a scientific variable, thus C is the best answer. It is the best description of just a scientific variable. And, The second one is B: Robert Hooke was a famous scientist who experimented with springs (metal coils). He found that the farther you stretched the spring, the larger the force with which the spring pulled back on you.
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Answer: Time= independent Grade= Dependent
Explanation: Time is independent and the grade is dependent on time.
