Yes the first one is very correct they deserve the brainliest answer
With reference to cardiac invalidism, spouses of heart attack victims often show mental distress over the patient's survival.
<h3>What is Heart Attack?</h3>
A heart attack occurs when the blood flow to the heart is severely restricted or blocked. The obstruction is often brought on by the buildup of fat, cholesterol, and other substances in the heart's (coronary) arteries. The fatty, cholesterol-containing formations are known as plaques. The process of plaque accumulation is known as atherosclerosis.
On rare occasions, a plaque may rupture, causing a clot to form and obstruct blood flow. A reduction in blood flow can damage or even destroy a portion of the heart muscle.
A heart attack is also known as a myocardial infarction.
In order to survive a heart attack, immediate treatment is necessary. Get emergency help if you think you're having a heart attack.
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Answer:
Carnivores, like herbivores have a front row of incisor teeth that are generally used for nibbling. ... The only difference is that the upper jaw of the bear aligns closer to the bottom jaw, giving more of a chewing mechanism than the dog, despite showing similar multi-cusped polar and molar teeth
Answer:
Diffusion through a semi-permeable membrane
Explanation:
A membrane that would only allow water, ions and certain molecules to pass through it by diffusion while restricting other large molecules molecules from passing through is called semi-permeable membrane
The iodine molecules were dissolved in the water in the beaker to form iodine solution.When the starch in the tubing was immersed into the red iodine solution, the molecules of iodine diffuse across the tubing walls which acts as the cells membrane -selectively permeable membrane to react with the starch solution. The reaction turns the starch blue black
The characteristic of the cell membrane is due to the lipid bi-layer which allow certain substance pass through while restricting others because of the inner hydrophobic (water hating) and outer hydrophilic phospholipid layer. (water loving layer)These forms the double bi layer to selectively control the movement of substances across it.