What is the difference between white and red blood cells? a. red blood cells hold oxygen; white blood cells hold carbon dioxide b. red blood cells carry oxygen; white blood cells attack viruses c. red blood cells hold carbon dioxide; white blood cells hold oxygen d. red blood cells are in veins; white blood cells are in arteries
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Biology, 21.06.2019 22:00
In what for do plants utilize nitrogen? why do they need nitrogen?
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Select the correct answer from each drop-down menu. in an experiment, dr. travis examined the effects of calcium intake on osteoporosis, a condition that causes an increased risk of bone fractures. the amount of calcium is variable. the risk of bone fractures .
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Biology, 22.06.2019 13:00
Jason puts an apple on top of an ice pack in his lunch bag lunch time the temperature of the apple has decreased what happens to the molecules in the apple when the temperature of the apple decreases
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What is the difference between white and red blood cells? a. red blood cells hold oxygen; white bl...
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