2n because when 2 gametes of n amount of DNA fertilise together they make an organism that is similar to its parents and have the total amount of DNA as 2n, just like parents.
Answer:
The increase in the amount of carbon dioxide in in blood will lead to respiratory acidosis
Explanation:
Carbon dioxide in its normal level between 38 to 42 mm Hg plays vital roles in the human body like regulating the PH of the human blood, breathing regulation and other things. If the amount of carbon dioxide is high more than the range level, it will cause what is called respiratory acidosis.
Respiratory acidosis is a situation in cause by decrease in ventilation i.e Oxygen level leading to increase in carbon dioxide and drop in PH level of the blood.
Alveoli are found in lungs and exchamge O2 and Co2 !!
so answer is last one !!
Answer: in the production systems of coal-burning power plants