why u delete the post I was not finish
Answer:
They both go back and forth, such as the climate going from hot to warm, and the tectonic plates of the earth going from closed 300 million years ago to spreading far apart now.
Coronary artery disease.
When plaque builds up, this will result in narrowing coronary artery and decreased blood flow may happen. This decreased blood flow may result in angina or chest pain, shortness of breath. This is also known as the ischemic hear disease which refer to a group of diseases which includes stable angi, unstable angina, myocardial infarction and sudden cardiac death. Plaques are waxy substance that accumulates on the vessel wall. Usually complete blockage can cause heart attack and immediate medical intervention must be done to the patient.
Eukaryotic cells do not have a nucleus. The nucleus is where DNA, your genetic material, is usually stored. Prokaryotic cells do not have a nucleus. The DNA just floats around the cell instead of staying in one designated area.