The answer is that Both aid in the expansion and relaxation of lungs. Diaphragm and the rib muscles are vital in the breathing process. During inhalation the intercostal muscles contract, expanding the ribcage, the diaphragm contracts, pulling downwards to increase the volume of the chest, pressure inside the chest is lowered and air is sucked into the lungs. During exhalation the intercostal muscles relax, the ribcage drops inward and downwards, the diaphragm relaxes, moving back upwards, decreasing the volume of the chest, the pressure inside the chest increases and air is forced out.
Answer:the first one I believe!
Explanation:
Sorry if it is wrong I have already done this and I pretty sure it’s the first one!
<span>The same amount of wax exists before and after the change.
Wax when melted will be like liquid. Liquid has no definite shape, but definite volume.</span>
Question:
<em>What is Darwin’s theory of the origin of species?</em>
Answer:
<em>The theory of evolution by natural selection, first formulated in Darwin's book "On the Origin of Species" in 1859, is the process by which organisms change over time as a result of changes in heritable physical or behavioral traits.</em>
Hope this helps!
Answer:
Rudolf Virchow
Explanation:
He is the name of the scientist that proved all cells come from other cells.
