Answer:
D, core
Explanation:
The outer core is located just below the mantle. It is made of liquid iron and nickel. Scientists believe this layer is responsible for the Earth's magnetic field. It is about 2,200 kilometers thick and around 4,500 degrees Celsius.
Answer:
b) a graphical representation of the relationship between hemoglobin's percent saturation and the partial pressure of oxygen
Explanation:
On vertical axis-hemoglobin's oxygen saturation
On horizontal axis-oxygen partial pressure
This curve determines hemoglobin affinity for oxygen. If hemoglobin has high oxygen saturation, hemoglobin's affinity for oxygen is high.
As the blood moves through the systemic capillary, hemoglobin's affinity for oxygen decreases, so that oxygen can be released into the cells.
Cell wall: strong; supporting layer around the cell membrane in plant cells
Mitochondria produce d. ATP and sugars
Hope that helps!