A waterborne pollutant can have different effects on aquatic life depending on the nature of the pollutant. A pollutant at lower levels can have minimal or no effect on aquatic life. However, when the concentrations of the pollutant are high, the population of aquatic organisms can be greatly reduced. There are also times when pollutants at lower concentrations cause significant damage. An organism can consume another organism that has absorbed small amounts of the pollutant. As the consumer takes in more of the contaminated organism, the pollutant is magnified in the body of the consumer resulting in lethal concentrations. This is called biomagnification.
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Explanation:
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We can compare prokaryotic cells and eukaryotic cells in following points:
• The prokaryotic cells are simple and primitive type of cells whereas •Eukaryotic cells are complex and advanced cells.
•The DNA is small and circular in prokaryotic cells whereas the DNA is large and linear in eukaryotic cells.
•In prokaryotic cells 70s type of ribosome is found in cytoplasm but in Eukaryotic cells both 70s (inside cell organelles) and 80s (in cytoplasm) are found.
• In prokaryotic cells cellular respiration takes place through cell membrane but in eukaryotic cells cellular respiration takes place through mitochondria.
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Most of the ATP produced during cellular respiration occurs in <span>from activity of the ATP synthase machine</span>
Answer:
The correct answer is C the polar head groups of phospholipid,glycolipid and cholesterol face towards the interior of the bilayer.
Explanation:
Plasma membrane contains various lipid molecules such as phospholipid,glycolipid,sphingolipid and cholesterol.The polar head groups of the phospholipid,glycolipid and cholesterol faces the hydrophilic region which is present outside the lipid bilayer and the nonpolar groups faces the hydrophobic region that is present interior of lipid bilayer.