Answer&Explanation:
At room temperature (27°C) the molecules of water moves faster due to their higher kinetic energy due to the higher temperature inside compared to at 0°C where they posses lowest kinetic energy that they don't show any sign of movement that means they have frozen
The double layered sac surrounding the heart is the pericardium
The answer is B. Because RNA is copied as the compliment to DNA, except uracil replaces thymine
When a person is exercising the blood is shifted from skeletal muscles into the systemic circulation. Skeletal muscle is one of the three major muscle type the other two is smooth muscle and cardiac muscles. Most most the skeletal muscle is attached to the bones by tendons.