Answer:
............. the need of _Nitrogen, phosphorus and potassium_
Explanation:
Each of these fundamental nutrients plays a key role in plant nutrition. ... It's also needed to help plants grow and develop normally. Phosphorus in commercial fertilizers comes from phosphate rock.
The procedures that can be used to perform water erosion laboratory practicals are:
- The use of detachment
- Transportation
- Deposition.
<h3>What is Water Erosion?</h3>
This refers to the biological process where rock particles are broken down into smaller particles and how they are removed by water.
Hence, we can see that in a laboratory experiment, one would need different apparatus such as:
- Pitchers
- Bottles
- Soil
- Water, etc.
This would be used to test the loss of water as it is put into the soil from the set of bottles to see how much the water is retained.
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The products of photosynthesis, oxygen and glucose, are the reactants of cellular respiration. The products of cellular respiration, carbon dioxide and water, are the reactants of photosynthesis.
Answer:
The three main steps of PCR amplification are :
Denaturation
Annealing
Elongation
Explanation:
Polymerase Chain Reaction (PCR) can best be describes as a procedure to amplify or make copies of DNA fragments.
The basic steps involved for PCR are :
1. Denaturation
In this step, the two complementary strands of DNA are seperated by the usage of heat. The best temperature for this procedure is 95°C.
2. Annealing
After denaturation, each strand of DNA serves as a template foe building a new strand. During the process of annealing, the temperature is reduced so that the primers can attach to the DNA strands. The optimum for this depends on the nature of the primers but usually the most feasible temperature is 55°C.
3. Elongation
In this step, the DNA polymerase adds nucleotides to the primers attached to the templates. The optimum temperature For DNA polymerase to work is 72°C.
