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Think about how your body reacts if you start exercising. How do the nervous, muscular, circulatory, and respiratory systems respond to an increased oxygen demand?
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Imagine ? person stepping on a pin and pulling his or her foot way look at the réfléchir arc of the scenarios below
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The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2
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Support mangrove trees out of the water. a) pneumatophores b) prop roots c) sand dunes d) tide supports
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Think about how your body reacts if you start exercising. How do the nervous, muscular, circulatory,...
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