He just change the placement or country
75% it will be RR or Rr and will have red eyes 25% it will have rr with different colored eyes.
True, there are many vessels serving as a conduit<span> between the lungs and the heart.
The number of the vessel is many because all the carbon dioxide from body need to be released at the lungs. More vessel means more surface area and blood flow rate to do the diffusion of the gas which means increased diffusion rate. This will allow the lung to transfer oxygen and dump carbon dioxide faster.</span>
Answer:
because your body is fighting against the disease
