Answer:
The embryonic stage.
Explanation:
The prenatal development goes through three different stages:
- The germinal stage: Begins at conception and it takes place during the next 2 weeks.
- The embryonic stage: It takes place from week two to eight weeks after conception. During this stage, the embryo begins to differentiate itself into three layers that will become different systems of the body. By week eight, the basic structures of the brain and central nervous system have been established and the organs start to appear.
- The fetus stage: It takes place from week 9 until birth. The systems formed in the previous stage continue to form until they are ready for birth.
Therefore, the period of prenatal development that occurs two to eight weeks after conception. During this period, the rate of cell differentiation intensifies, support systems for the cells form, and organs appear is called the embryonic stage.
Answer:
b. Start at the inferior region of the heart and remove the parietal pericardium until you reach the atria, then carefully cut the inferior portion of the parietal pericardium off. After you have done this you can slowly expose the major vessels by removing the rest of the parietal pericardium.
Explanation:
The pericardium is a fluid-containing membrane that surrounds the heart and protects it from infections while also lubricating it during movement. Pericarditis is a condition in which the pericardium becomes stiff and holds the heart in such a way that it prevents normal pumping movement, filling the heart inconsistently with blood and causing heart failure. To solve this, pericardiectomy is performed which is the surgical removal of the pericardium. This is done through median sternotomy, this approach cuts through the breastbone to reach the inferior part of the heart and then the parietal pericardium which is the outer pericardium.
Answer:
planting more trees and also using environment friendly vehicles.
by using alternate source of energy.
using electric vehicles.
Avoid burning leaves,trash and other materials.
With what I know about Grunge music, it is NOT upbeat and happy.
