the tiny blood vessels surrounding the alveoli are called capillaries.
the capillaries have thin walls and are connected to the larger blood vessels ( veins) and they bring oxygen to the heart threw oxygenated blood.
Answer:
TGCTTAAGGCC
Explanation:
The A base always pairs up with the T base, and the C base always paired with the G base.
I remember it as <em>A</em><em> </em>pple in the <em>T</em><em> </em>ree and <em>C</em><em> </em>ar in the <em>G</em><em> </em>arage.
Answer:
because their expantion is faster
Explanation:
Answer:
do they reproduce at all?
Explanation: