Answer:
Last option
Explanation:
Mitochondria because they are smaller than cells and have membranes
Answer:
<em>At the respiratory membrane, where the alveolar and capillary walls meet, gases move across the membranes, with oxygen entering the bloodstream and carbon dioxide exiting. It is through this mechanism that blood is oxygenated and carbon dioxide, the waste product of cellular respiration, is removed from the body.</em>
<em></em>
I think that’s right thanks for the point god bless
Answer:
I'm amazing my friend how about you?
C. 8 * 10^-8 cm2
2*10^4=20000
20000*(4*10^-12)=8*10^-8