Answer:
False
Explanation:
this is because nitrogen needs to be in the soil so plants can convery it into useable forms of energy
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Immunoassay is a process that can be used to detect a specific antigen or antibody present in a sample.
<h3>What are the various steps of immunoassay?</h3>
The various steps of immunoassay depends of the type of immunoassay used for diagnosis.
Using the direct Enzyme-Linked-Immunosorbent Assay (ELISA) the steps involved in antigen detection include:
- plate coating: the plate is coated with a known antibody
- plate blocking: Buffer is used to block free sites in the well.
- Antibody incubation is carried out at 37°C and
- Detection: Enzyme conjugated detection Antigen binds to the antigen.
Using the indirect Enzyme-Linked-Immunosorbent Assay (ELISA) the steps involved in antibody detection include:
- Micro-well plates are incubated with antigens, washed up and blocked with BSA.
- Samples with antibodies are added and washed.
- Enzyme linked secondary antibody are added and washed.
- A substrate is added, and enzymes on the antibody elicit a chromogenic or fluorescent signal.
Learn more about immunoassay here:
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Answer: medulla of the brain
The medulla of our brain is the control center of our heart rate. It either slows or speeds the heart beats per minute. If the medulla of the brain is not working correctly, our heart rate is also not being controlled correctly. We would not be able to live without the medulla. It helps in regulating blood pressure, breathing and transfer of neural messages from the brain to the spinal cord.
Water flows from the side of higher water potential (higher water concentration leads to higher water potential) to the side of lower water potential.
This movement is called osmosis. Water potential means the tendency of water flowing away. The higher the water concentration the solvent/solution is, the higher the water potential is and the more likely it'll flow to the other side.
Therefore, if one of the solvents has 10% water and the other has 50% water, water molecules will flow from the one with 50% water to the 10% one. This movement is completely natural and does not require extra energy. The net flow will stop until both sides have the same water concentration. Water still flows through both sides at that time, but no net flow.
Note that osmosis is only the movement of water molecules, with the presence of semi-permeable membrane (which can decide what substances can go through), and the flow of down the water potential gradient. If any one of these is not applicable, the movement is not osmosis.
