The correct answer is B) Treaties expanding International Trade
After the second world war, the world has gradually opened up to one another for trade and opportunities.
We see that in the development of the World Trade Organization, as well as the NAFTA (North American Free Trade Agreement) between Canada, US, and Mexico and probably the most successful example in the European Economic Zone.
Answer:
The hypha is the building block of a fungus. On the other hand, mycelium refers to the collection of hyphae in a fungus' body. 2. Hyphae are often described as strands, threads, or filaments because of their appearance.
The normal blood pH for adult humans is 7.40, and this pH value is vigorously defended at normal body temperature
Acid base Homeostasis is the method by which body keeps a constant ph
pH is kept under check via different systems
1. Chemical system :bicarbonate buffer system(explained below )
Respiratory component :
2. Respiratory Component: The second line of dense is rapid consisting of the control the carbonic acid concentration in the ECF by changing the rate and depth of breathing by hyperventilation or hypoventilation. This blows off or retains carbon dioxide (and thus carbonic acid) in the blood plasma as required
3.Metabolic component : third line of defense is slow, best measured by the base excess,eand mostly depends on the renal system which can add or remove bicarbonate ions to or from the ECF.Bicarbonate ions are derived from metabolic carbon dioxide which is enzymatically converted to carbonic acid in the renal tubular cells.There, carbonic acid spontaneously dissociates into hydrogen ions and bicarbonate ions.When the pH in the ECF falls, hydrogen ions are excreted into urine, while bicarbonate ions are secreted into blood plasma, causing the plasma pH to rise.The converse happens if the pH in the ECF tends to rise: bicarbonate ions are then excreted into the urine and hydrogen ions into the blood plasma.
Buffers usually consist of a weak acid and its conjugate base; this enables them to readily absorb excess H+ or OH–, keeping the system’s pH within a narrow range.
Maintaining a constant blood pH is critical to a person’s well-being. The buffer that maintains the pH of human blood involves carbonic acid (H2CO3), bicarbonate ion (HCO3–), and carbon dioxide (CO2). When bicarbonate ions combine with free hydrogen ions and become carbonic acid, hydrogen ions are removed, moderating pH changes. Similarly, excess carbonic acid can be converted into carbon dioxide gas and exhaled through the lungs; this prevents too many free hydrogen ions from building up in the blood and dangerously reducing its pH; likewise, if too much OH– is introduced into the system, carbonic acid will combine with it to create bicarbonate, lowering the pH.
Example: Antacids, which combat excess stomach acid, are another example of buffers.
ECF =Extra cellular fluid
The conductor is similar to the nucleus of the cell. Like how the conductor controls the train, the nucleus controls and regulates cell activity.
<h2>Part 1.</h2><h2>Answer:</h2>
Only the traits or allele for the green trait will be needed to make a green cucumber.
<h3>Explanation:</h3>
Here in the given example there are two allele responsible for the color of cucumber. One is Y which is dominant allele and codes for the yellow color.
While y is recessive allele and it will be code for the green color.
In case of heterozygous in which the genotype will be Yy but the phenotype will be always yellow because Y is dominant.
In case of genotype yy the phenotype will be green.
So for green cucumber there will be two y in the genotype.
<h2>Part 2.</h2><h2>Answer:</h2>
For yellow cucumber, there is need of only one dominant allele which codes for yellow.
<h3>Explanation:</h3>
According to the given punnet squre, There will be 4 genotypes from the breeding of a yellow cucumber and green cucumber.
The yellow cucumber is heterozygous or homozygous and its genotypes can be Yy and YY relatively.
But for green cucumber the genotype can only be homozygous which is yy.
In the punnet squre the 2 phenotype are yellow and green.
Hence for the yellow cucumber there is only need of one Y allele in genotype.
