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Biology, 22.06.2019 00:00
Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels
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Biology, 22.06.2019 05:50
The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes
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Biology, 22.06.2019 16:30
Which of the following cognitive skills have not been displayed by animals? a. using tools b. forming concepts c. transmitting culture d. using syntax
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Biology, 17.07.2019 06:28
Business, 17.07.2019 06:28
Chemistry, 17.07.2019 06:28
Biology, 17.07.2019 06:28
Computers and Technology, 17.07.2019 06:28
Biology, 17.07.2019 06:28
Chemistry, 17.07.2019 06:28