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DerKrebs [107]
2 years ago
12

The source of the oxygen produced by photosynthesis has been identified through experiments using radioactive tracers. the oxyge

n comes from __________.
Biology
1 answer:
fredd [130]2 years ago
8 0
Hello! The correct answer for the blank is: Water.


I really hope this helped you! :c
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Bone marrow transplant taken from a donor and infused through the central vein is coded to what icd-10-pcs code
slava [35]
The ICD-10-PCS code is 30240G4.

Firstly, select "Administration" (section 3) because the procedure is the administration of bone marrow to the patient. Secondly, select "Circulatory" (section 30) because it is being administered in a vein (circulatory system). Third, select "Transfusion" (section 302) because it is being done a transfusion of bone marrow. Then select "Central Vein" (section 3024) because that's the place of administration in the circulatory system. Lastly, go to "Bone Marrow" (section 30240G) as that is what's being transfused and then choose "Transfusion of Allogeneic Unspecified Bone Marrow into Central Vein, Open Approach" (<span>30240G4) because it is not specified what type of transfusion it is.</span>
5 0
2 years ago
In physics a players natural resistance to an unbalanced force is called?
ss7ja [257]

Answer:

if a players natural resistance to an unbalanced force is called unbalanced force

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What are the errors in the table? Check all that apply.
ivanzaharov [21]

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ER is found in both animals and plants

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the endoplasmic reticulum is found in both cells of animals and plants

4 0
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Drawn below is the structure of singulair® (montelukast), a medication used to manage asthma. assign the absolute configuration
Zielflug [23.3K]
The answer is R. The structure of singulair (montelukast), a medication used to manage asthma, the absolute absolute configuration of the chirality center is r and not s. Montelukast is aeukotriene receptor antagonist used to relieve symptoms of seasonal allergies.and used <span>for the maintenance treatment of asthma.</span>
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Write down three problems caused by expansion or contraction.how are these problems overcome?
masya89 [10]

Answer:

The problems that can be caused by Expansion or Contraction a;long with the solutions are:

Explanation:

  1. The railway tracks made of steel expand during the summer and contract during the winter. This can cause them to become curved during the summer thereby causing rail derailment.In order to prevent this, an air gap is kept in between the railway lines so that they get the space to expand without getting curved.
  2. The electric wires linking the telegraph posts are made up of metals and so they expand in the summer and contract in the winter, which can cause them to tear. This is why the wires are loosely fixed so that they can expand and sag in the summer and contract and tighten in the winter.
  3. Bridges are constructed with joints where some space is maintained to allow the easy expansion and contraction in summer and winter respectively.
4 0
2 years ago
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