Answer:
can be mutualistic or antagonistic.
Explanation:
According to the given information, the bacterial species <em>Staphylococcus aureus </em>present in some nasal passages and on the skin do not harm the person. The ecological interaction wherein both organisms are benefited and none is harmed is known as mutualism. Here, <em>Staphylococcus aureus</em> does not cause any disease in human when present on the skin and in the nasal passage, that is both are in mutualism.
However, when present in the bloodstream, the same bacterial species can cause infections such as sepsis and represents antagonist effects on the host.
Hence, the <em>staphylococcus aureus </em>species may be mutualistic or antagonistic to human.
eDNA from the skin cells of a fish can be found in water
Answer:
The correct answer is - osmosis.
Explanation:
Paramecium lives in freshwater like the Potomac River which is hypotonic to the cytosol of the paramecium. Paramecium uses contractile vacuoles to transport the water from the lower concentration (outside of the cell) to a high concentration of solvent to the inside of the cells.
This process of cell transport is carried out by osmosis as their cytoplasm contains a higher concentration of solutes outside the cell. This excess water is collected into vacuoles called contractile vacuole that swells and finally internalized the water to the outside of the cell.
Thus, the correct answer is - osmosis.
Answer:
Carrector pill muscles hair follicles
Explanation:
melanocytes and keratin are present in the epidermis
