Melanophores are small pigments that are present in the dermis layer of the skin of a shark. They impart a gray color to the dorsal and lateral surface area of the shark. They help in background adaptation and countershading of the body, which makes a shark difficult to be seen.
<span>There are 46 chromosomes in a human zygote.
</span><span>Source(s):
Google. I also know this, just to make sure you know my answer is right!
</span><em>When the gametes join they form a cell called a zygote. Human sperm and eggs contain 23 chromosomes</em><span><em>. Human zygotes contain </em></span><em>46 chromosomes</em><span><em>. The type of cell division that produces gametes with half the normal chromosome number is called meiosis.</em></span>
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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.
Learn more about heart attack with the help of the given link:
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What experiment? Id prob say popularity