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The body system responsible for exchange of gases between the body and the environment is the a digestive system b respiratory system c circulatory system d excretory system
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Which group of algae is characterized by unicellular organisms and includes some members that would be better classified as zooflagellates? euglenophytes red algae sporozoans green algae
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Which of the following is the most likely outcome of global warming
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When plants use sunlight to make food, the energy of sunlight is
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The body system responsible for exchange of gases between the body and the environment is the a dige...
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