Gas molecules across the membrane
It can be water molecules as well
<span>The answer is A……A. Salamanders have a
larvae stage that breaths through gills while the adults breaths through lungs.
The larvae stage develops 30 days after
hatching and may metamorphose into an adult (60 days from hatching) ore remain as
larvae to maturity. </span>
C. Blood cancerb. Lung can ser is a desease a chain smoker most
