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Answers: 3
Biology, 21.06.2019 18:40
The oxidizing agent our bodies use to obtain energy from food is oxygen (from the air). if you breathe 15 times a minute (at rest), taking in and exhaling 0.5 l of air with each breath, what volume of air do you breathe each day? air is 21% oxygen by volume. what volume of oxygen do you breathe each day?
Answers: 1
Biology, 21.06.2019 21:30
List the advantages and disadavantages of the switch from persistent chlorinated hydrocarbon pesticides (such as ddt) to nonpersistent organophosphate pesicides. have the benefits of the switch outweighed the disadvantages? explain.
Answers: 3
Biology, 22.06.2019 06:00
Explain why ecosystem diversity results in species diversity in a healthy biosphere
Answers: 3
Biology, 22.06.2019 08:00
What are the student's observations and inferences before he starts his investigation?
Answers: 3
Mathematics, 05.05.2020 10:17
English, 05.05.2020 10:17
History, 05.05.2020 10:17
Mathematics, 05.05.2020 10:17
Mathematics, 05.05.2020 10:17
History, 05.05.2020 10:17
Mathematics, 05.05.2020 10:17
Mathematics, 05.05.2020 10:17
Mathematics, 05.05.2020 10:17
Mathematics, 05.05.2020 10:17
Mathematics, 05.05.2020 10:17