The answer is ‘behavioral isolation’. It is a form of
sympatric speciation - which occurs even when
species live in the same habitat. In this case,
the individuals in the population are isolated by differences in mating and probably different mating rituals.
Power is the rate at which work is done.
Hope this helps!
Answer:
Paul has natural active immunity, while Nicholas has artificial active immunity.
Explanation:
Natural active immunity is an immunity that occurs when an individual is exposed to a disease causing organism, gets infected, and also become immune to the disease due to the primary immune response. From the question, Paul has natural active immunity because he had chicken pox before, and the virus that causes chicken pox has interacted with his immune response, hence, making him to develop natural immunity to the disease.
Artificial active immunity is an immunity that an individual acquires when small amount of immunity to a disease is deliberately exposed to his body. Artificial active immunity is usually produced in the form of vaccinations. From the question, Nicholas has artificial active immunity because chicken pox vaccines were intentionally introduced to his body.
In my opinion, nuclear war will is the biggest threat and we need to prevent that from happening. If a nuclear “world” war does occur, the war would end up killing every or most of the world population, as well as other living things of course. Instead of expanding our own nuclear energy, we should focus on making and upgrading nuclear bunkers to shield us from the war and radiation.
<span>The membranes of neurons at rest are very permeable to K+ but only slightly permeable to Na+. The sodium – potassium pump carry both Na and K ion through the membrane to balance the leakage. Na+ is pushed out of the cell and K+ is pulled into the cell.</span>
