The main difference between eukaryotic and prokaryotic cells is that eukaryotic cells have a nucleus. The nucleus is where cells store their DNA, which is the genetic material. The nucleus is surrounded by a membrane. Prokaryotic cells do not have a nucleus. Instead, their DNA floats around inside the cell.
The answer is true all skeletal muscles are attached to some component of the skeleton, unlike smooth muscle which comprises hollow organs such as the intestines or blood vessels.
The top, with the least amount of energy available, because the higher up the pyramid you go the less energy is transferred. <span />
The correct answers are 1, 2 and 4