The middle question is the nucleus, transcription takes place in the nucleus while translation happens in the cytoplasm
Answer:
C) The allele R' is becoming more common in the population.
Answer:
1. The physiological changes that will occur when someone lives at altitude for an extended period include increased production of more red blood cells.
2. The changes are advantageous as the person can survive lower altitude better and strenuous activities that interferes with breathing.
3. The specific physiological pathway that results in the changes described involves decrease in pulmonary ventilation at high altitude leading to hypoxia then hypoxemia. The body then produces more red blood cells to counteract the lower oxygen saturation in blood in high altitudes.
I don't know if this is what you're looking for but...
examples of abiotic factors in a marine ecosystem could be the water, oxygen in the water which helps the animals in the water breathe, and the sun that reflects into the water.
