Answer:
All the organisms has developed some methods to respond towards the changing environment. Bacteria also develops some mechanism by which they are able to tolerate the external environment.
Some bacteria respond towards environment by increasing the rate of mutation. This mutation can be accomplished as it creates the formation of oncogenes in the bacteria. The cyclins and kinases of cell cycle gets mutated that leads to the uncontrolled growth of cell bacteria. This produces an evolutionary advantage to bacteria as it allows the bacteria to grow in the hostile environment. For example: the development of resistant strain of bacteria towards a specific drug.
Answer:
Rh negative can only receive Rh negative blood
Explanation:
When a person has Rh negative blood and receives a transfusion of Rh positive blood, the body does not recognize the antigen and attacks it as if it were an invader. This makes the person’s body essentially attack itself.
<span>The salinity of the water goes down as the icecaps melt. That is because the icecaps are fresh water, meaning there's no salt in that ice. If they melt rapidly, the water mixes with the ocean water that is salty and since fresh water is added, the salinity reduces and the oceans become less salty.</span>
The answer is (a.) Archaebacteria
Archaebacteria or Archaea are prokaryotes. They have no cell nucleus. They don't even have membrane-bound organelles in the cells. These bacteria can utilize methane as their source of energy but oxygen is not vital for their survival.
Answer:
Mutualism, this happens when both organisms benefit. Good luck on whatever your doing mate, have a great day.
Explanation: