Answer:
Higher
Explanation:
Molecules such as oxygen move from a higher concentration to a lower concentration across a semi-permeable membrane. This process is called simple diffusion.
Therefore, for oxygen to leave the alveoli and enter the blood, there would need to be a higher concentration of oxygen inside the alveoli and a lower concentration of oxygen in the blood.
Answer:
liver arm ,pivot, effort and load
A possible Hypothesis probably .
The limbs of the organisms are similar because they are formed in similar ways during embryonic development and share similar arrangements.
Genus comes first so genus
