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.
Endotherms are animals whose body
temperature is regulated mainly by internal bodily processes. Endotherms are
warm blooded animals such as birds and mammals that maintain a constant body
temperature independent of the environment. Endotherms require high quantities
of fuel to produce heat for their survival under low external temperatures.
Catalysts lower the Activation energy for reactions. The lower the activation energy for a reaction,the faster the rate. Thus enzymes speed up reactions by lowering activation energy. Many enzymes change shape when substrate ms bind.
Mature DNA cells do NOT contain DNA.
