Answer:
The baby starts breathing
Explanation:
While in the womb, a fetus has its oxygen delivered to it, and the waste products removed (all via the mother's bloodstream), so there is no reason to separate all the chambers of the heart while still in the womb.
However, once the baby is born and it is breathing, the chambers need to differentiate in order to allow the blood to reach the lungs, and the oxygenated blood and deoxygenated blood do not mix.
Smoking i think well because we voluntary to smoke even thorough we know the threat of that
Answer:
I would be the extension of the trunk
Explanation:
The erector spinae muscle extends the vertebreal column. [1] It is formed of 3 muscles and its fibers run more or less vertically throughout the lumbar, thoracic and cervical regions. It lies in the groove to the side of the vertebral column. In cervical region it is covered by nuchal ligament and in thoracic and lumber region by thoracolumbar fascia.
Answer:
indicator does not get affected by salt
Explanation:
indicator does not get affected by salt because indicators are used to detect an acid or base but salt is a neutral substance which is neither acidic nor basic ..
<em>hence</em><em> </em><em>it</em><em> </em><em>doesn't</em><em> </em><em>show</em><em> </em><em>any effect</em><em> </em><em>by</em><em> </em><em>salt</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>
Answer: Motaba virus was discovered in 1967.
Explanation:
The Motaba virus spread during Kisangani Mutinies, in the African jungle and the soldiers of the U. S. Army were infected by the virus, while staying in an African jungle. It was responsible for development of symptom of deadly fever. The U.S. Army officers Billy Ford and Donald McClintock destroyed the camp where the infected soldiers were staying.
