Answer:
The correct option is : b. can be mild, moderate, or severe
Explanation:
Myocardial infarction, or heart attack, is a medical condition that occurs when the flow of blood stops or decreases to the human heart, thus causing damage to the heart muscles. Some of the symptoms include chest pain, nausea, sweating, cold sweat, fatigue, etc.
Heart attacks<u> can be mild, moderate or severe and can also cause sudden death. </u>
If the inadequate blood flow to the heart lasts long enough, it can lead to <u>necrosis of the heart tissues</u>.
Myocardial infarction can be <u>diagnosed by electrocardiogram (ECG), echocardiogram, blood tests, X-ray, angiogram, MRI.</u>
The red blood cell is normally circular shaped but for sickle cell anemia the red blood cell is literally sickle shaped so the surface area decreases and less amount of oxygen is stored by the sickle shaped cell thus resulting in low O2 content
Answer:
Primary succession occurs following an opening of a pristine habitat, for example, a lava flow, an area left from retreated glacier, or abandoned strip mine. In contrast, secondary succession is a response to a disturbance, for example, forest fire, tsunami, flood, or an abandoned field.In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area that was previously occupied by living things is disturbed, then re-colonized following the disturbance.
Explanation:
Answer:
I don't know it can you help me
