Exercise requires the use of oxygen to produce energy.

It certainly does. If you mean this to be a true false question, then the answer is huge yes.

People with deficiencies in Red Blood Cells will certainly tell you that they are listless and can do very little work because they are not getting enough oxygen going through their bodies. They are not lazy, nor incompetent, because every activity is daunting because they just cannot do the work.

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so we know the answer cannot be c because no insect or animal starts as an adult

the answer is a. a swimming larvae

because since they are sea animals they automatticaly have to know how to swim they cannot just sink to the bottom

sorry if this is the incorrect answer.

c is the answer to this question. don't bunt to ruin a pitchers no hit game. it's .