Nitrogen is cycled through the air
Answer:
The correct option is A
Countercurrent multiplication is the process whereby energy is used to generate an osmotic gradient in which water is reabsorbed from the tubular fluid to produced concentrated urine.
Explanation:
Countercurrent multiplication moves sodium chloride from tubular fluid into interstitial space deep within the kidneys. The concurrent multiplication process build up osmotic gradient interstitial fluid in a single effect. Here, sodium chloride is driven by active transport out of the tubular fluid in the thick ascending limb into the interstitial fluid, which becomes hyperosmotic. This result to water moving passively down its concentration gradient out of the tubular fluid in the descending limb into the interstitial space to a point where it attains a state of equilibrium.
Therefore,the correct option is A, where the ions leaves the ascending limb to make water comes out of descending limb.
Answer: In addition to having a 50% chance of inheriting autosomal dominant disorders from an affected parent, such a disorder is characterized by equal frequency of occurrence in both sexes (male and female).
Explanation: Autosomal dominant disorder has the following characteristics;
1. Appears in both sexes with equal frequency.
2. Does not skip generations.
3. Affected offsprings must have an affected parent unless they possess a new mutation.
4. Unaffected parents do not transmit the disorder.
5. When one parent is affected (heterozygous) and the other parent is unaffected, approximately 50% of the offsprings will be affected.
"Scarus frenatus" I think
