Answer:
Nonspecific immunity is designed to deal only with microbes that are not a threat to the body, whereas, the specific immune system only deals with microorganisms that cause infection.
Answer:
Low Stationary or Low Fluctuating
Reasons:
-birth rate is low
-death rate has fallen
-total population is high and stationary
-life expectancy is very high
Answer:
The correct answer will be option-B
Explanation:
Theodor Engelmann performed the experiment to study the relationship between the production of oxygen in response to the wavelength of light. This was observed by the congregation of the bacteria in the red and blue wavelength.
In the given condition, if no light is passed through prism then the bacteria will not be accumulated in a particular area instead will be evenly distributed as the algae will produce the oxygen evenly and the concentration is not high in any particular area.
Thus, Option-B is the correct answer.