Most health experts recommend eating tuna a few times a week and eating shark few times a month because: eating these fish could result in the buildup of pollutants in fat tissue of humans.
<h3>Why health experts recommend tuna and shark to be consumed less?</h3>
Large fish like sharks and tuna feed on smaller fish and can accumulate high levels of environmental pollutants like mercury and the risk also increases as off-shore pollution increases.
Shark meat is recommended only a few times a month because sharks are apex predators who accumulate high levels of toxic chemicals and heavy metals from both skin absorption and from consuming prey. This is called bioaccumulation.
To know more about bioaccumulation, refer
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Answer:
(A) - The volume of the blood plasma increases on overhydration and decreaes on dehydration.
(B) - Osmolality of blood increases with the dehydration and decreases with the overhydration.
Explanation:
If the levels of drinking water is increased, then the plasma becomes more dilute and the plasma volume increases because <u>the water will be reabsorbed more and which as a result reduces plasma concentration of the solutes and increases volume of plasma.</u>
Plasma osmolality measures electrolyte-water balance of the body. <u>As mentioned, above on overhydration, the plasma concentration of the solutes decraeses which also decreases osmolality. So, Osmolality of blood increases with the dehydration and decreases with the overhydration. </u>Increased osmolality in blood stimulate the secretion of antidiuretic hormone which results in the increased water reabsorption and therefore, more concentrated urine and hence blood plasma with less concentration.
Answer:
Cell membrane is a semi-permeable membrane that surrounds the cytoplasm.
Explanation:
Archea contains only 1 cell and they are prokaryotic organisms. They have a different molecular setting, thus making them different from bacteria.
Cell membrane of Archea:
- In archeal cell membrane, isoprene chains are connected to glycerol lipid monolayer,
- The cell membrane is either lipid bi layer or lipid mono layer.
- Archeal cell wall contains pseudo peptidoglycan.
Cell Membrane of Bacteria:
- In bacteria, the fatty acid chains are linked to glycerol.
- The cell membrane is a lipid bilayer.
- Bacterial wall contains peptidoglycans.
Answer:
D. to assist the person trapped in the house
Explanation:
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