It means a revervoir that is man-made (not natural).
Answer:
Smoke-induced oxidative stress limited the oxygen-carrying capacity of the previous red blood cells
Explanation:
The red blood cell (RBC) contains hemoglobin which helps in the transport of oxygen. However, the Jane's smoking must have induced oxidative stress to the cells of her body including RBC, thus compromising it's oxygen-carrying capacity.
Hence Jane's body increased RBC count in order to maintain oxygen supply to all cells of her body.
These first trees had a huge importance for the other plants and for the animals, and this was because:
- they managed to change the structure of the atmosphere by consuming, using, and storing carbon dioxide, and releasing oxygen, which made the atmosphere much more suitable for life.
- they managed to influence the climate, by making it more moist, and also making the ground bellow them cooler.
- they were producing large amounts of biomass, which made the soil types much richer in nutrients, which in turn enabled more and more plants to grow.
- they were a food source of the animals.
