Answer:
541 million years ago with the Cambrian explosion, an extraordinary diversification of marine animals, and ended about 252 million years ago with the end-Permian extinction, the greatest extinction event in Earth history.
source- Britannica
Explanation:
no, the scope on it blocks out natural light
Although the diagram is not provided, I have encountered it before. The region labelled "B" is a ring with two small particles on it. This ring is the electron cloud and is where the electrons move. Therefore, it is negatively charged.
During a myocardial infarction, proteins that are normally inside the cells leak into the plasma, due to loss of plasma membrane integrity.
<h3>Cardiac disorders and it's effects:</h3>
There are different types of cardiac or heart disorders that occurs due to different etiological origins.
Example of a cardiac disorder is the myocardial infarction.
Myocardial infarction is defined as the blockage of blood flow to the heart by the presence of blood clot.
This hinders the delivery of oxygen carried by the blood to tissue cells leading to apoptosis (which is a programmed cell death).
This will cause the plasma membrane of cells to lose its integrity leading to leaking of proteins into the plasma.
Learn more about myocardial infarction here:
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