Blood leaves via right ventricle without oxygen, goes to lungs, fills up with oxygen and returns to heart through the left atrium. It then moves into the left ventricle and goes to the body to deliver oxygen.
Answer: The two sex cells are forms from the phase called meiosis to start to create the sex cells. The x chromosome is the mother while the y is the father.
Explanation:
Answer:
Option B
Explanation:
The pH scale is a way of determining a substance acidity, and it is logarithmic. As a result, each pH value is ten times more acidic than the next higher value. Therefore, pH 4 is ten times more acidic than pH 5 and 100 times (10*10) more acidic than pH 6.
Answer:
Molecules diffuse across the plasma membrane. A concentration gradient exists for these molecules, so they have the potential to diffuse into or out of the cell by moving down it.