Answer:
Peroxides
Explanation:
Peroxides are group of compounds that have the structure R-O-O-R. Peroxides have two oxygen atoms linked together by single covalent bond.
Hydrogen peroxide is most common peroxide and toxic byproduct of respiration. Hydrogen peroxide is involved in producing oxidative stress and thus producing damage to cellular components.
Peroxidases are enzymes that are found in wide range of organisms from bacteria to plants and animals. Most of these enzymes breakdown invloved in breakdown of hydrogen peroxide. Peroxidases act as antioxidant to reduce oxidative stress by cleavenging hydrogen peroxide radicles.
The two kinds of basic cell division include mitosis and meiosis.
Mitosis is where a parent cell divides and produces 2 genetically indentical daughters cells. So this means that when the cell division is complete, the number and even the sequence of chromosomes is exactly same as the original parent cell.
And in meiosis, also called reduction division, is where the parent cell divides and produces 4 genetically different daughter cells, which has only half of the number of chromosomes than that of the original parent cell. This process has to go through 2 times of divisions.
Mitosis is usually seen in most somatic cells, it is very important to activities such as growth, repair etc. Meanwhile, meiosis is seen in gametes, and its important for sexual reproduction.
If the blood specimen from a dermal puncture is clotted before being mixed with the anticoagulant in the micro collection container, it will not be suitable for testing.
<h3>Why clotted blood cannot be used for testing?</h3>
In order to stop the loss of blood from damaged blood arteries, tissues, or organs, blood coagulation is a process where circulating components in the blood system are transformed into a gel with insoluble properties. The body creates a blood clot out of fibrin and platelets (thrombocytes) when a blood vessel (a vein or an artery) is wounded in order to stop further blood loss. Blood clots can still develop in the body even when no blood vessels are damaged. An embolus is a clot or a portion of a clot that separates and starts to move around the body.
Clotting has a negative impact on our automated hematology analyzer and unpredictably invalidates cell counts resulting in errors while testing.
To learn more about blood clotting visit:
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Answer:
D the upper layers
Explanation:
at first, lifeforms were simple. they got more complex for a variety of reasons, including to adapt to the changing earth. simple organisms will be lower down for that reason.
