Answer:
<h2>measures the pressure of blood when the heart contracts and relaxes.. </h2>
Answer:
C. The high concentration of hydrogen ions in the intermembrane
Explanation:
Merry Christmas
Answer:
At its closest, the Sun is 91.4 million miles (147.1 million km) away from us. At its farthest, the Sun is 94.5 million miles (152.1 million km) away. The Earth is closest to the Sun during winter in the northern hemisphere.
Explanation:
