<h2>Pericardium </h2>
Explanation:
Pericardium is the fibrous tissue that surrounds the heart and the roots of the great blood vessels
The pericardium's outer coat is called the parietal pericardium which is tough and thickened, loosely cloaks the heart, and is attached to the central part of the diaphragm and the back of the breastbone
Its inner coat is called the visceral pericardium or epicardium which is double, with one layer closely adherent to the heart and the other lining the inner surface of the outer coat
The intervening space between these layers is filled with pericardial fluid
This small amount of fluid acts as a lubricant to allow normal heart movement within the chest
Answer: The location of the ecosystem determines.
Explanation:
Adaptation is the dynamic evolutionary of animals or humans to a better state.
Reasons for changes in ecosystem may include:-
- Conditions of the ecosystem
- Organisms Environment etc.
Take for example, white coat over the hare species will help the population to remain insulated and protected against predators.
Answer:
Atoms are the smallest bits of ordinary matter and are made from particles called protons (which carry a positive electrical charge), neutrons (which carry no electrical charge) and electrons (which carry a negative electrical charge).
An element is a substance that is made entirely from one type of atom.
An element is a substance that is made entirely from one type of atom. For example, the element hydrogen is made from atoms containing just one proton and one electron.
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