Well it does carry blood and oxygen! Sorry but I'm not sure about 2 and 4.
Answer:
Mechanical energy is the energy that is possessed by an object due to its motion or due to its position. Mechanical energy can be either kinetic energy (energy of motion) or potential energy
A, electrons are negatively charged and do orbit around the nucleons
One problem with weight training as a way to improve overall health is that the results of a weight-training program are not measurable.
B.False
<span>The answer to your question is choice: D</span>
