Just read the book and then circle the words you don't understand learn them and then read it again
<span>During the peak of industrialization, there was a drastic change in the environment in Europe. Due to increased use of fossil fuels to run machines, the environment in urban centers was black due to soot produced by industries and settled on buildings and the environment. Therefore black moths were able to camouflage in this environment hence evade predators. White moths were, conversely, more conspicuous in this environment hence predated on more. The black moths were, therefore, more likely to pass their genes to the next generation compared to white moths</span>
Answer:
Heart valves or the closure of the mitral and tricuspid atrioventricular (AV) valves at the beginning of ventricular systole and the closure of the aortic valve and pulmonary valve at the end of ventricular systole.
Explanation:
The heart tone “lub,” or S1, is caused by the closure of the mitral and tricuspid atrioventricular (AV) valves at the beginning of ventricular systole.
The heart tone “dub,” or S2 ( a combination of A2 and P2), is caused by the closure of the aortic valve and pulmonary valve at the end of ventricular systole.
C . Each new cell has different information in its nucleus
When peanut <span>seedlings were grown under identical conditions, the factor that could count for differences in height among the seedlings is GENETICS.</span>
