Explanation:
first - red
second- both red and pink
third - both red and pink
Answer:
If it is tested in a controlled setting with repeated results
Explanation:
The exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. As shown below, inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.
The answer is B
C pairs with G, T pairs with A but in RNA T is replaced with U so A pairs with U
