If two brown-eyed parents have produced three blue-eyed sons and if they have another child, it's likely their next child will be brown-eyed. Both parents have a recessive allele for blue eyes, so it is a 75 percent chance the next will be brown-eyed.
Hope that helps. -UF aka Nadia
Answer:
Option (a).
Explanation:
Counter current flow may be defined as the flow of water in the opposite direction with the flow of blood in the body. This countercurrent flow is generally occurs in fishes.
The one main benefit of the countercurrent flow is the absorption of maximum oxygen as the water flows inside the body. Approximately, three time more oxygen is extracted during the counter current flow. The concentration gradient is maintained up to the whole length of gills.
Thus, the correct answer is option (a).
Answer:
Red or Blue Litmus paper changes color when exposed to an acid or base.
Explanation:
