Answer:
b. smoking can paralyze the ciliary escalator.
Explanation
Generally cilia in the respiratory tract of smoker will undergo paralysis for 1-3 hours after smoking, and generally paralyzed in chronic smokers.
This is because the toxins( the TAR) in the cigarette destroy the mucocilliary escalator that trapped inhaled pathogens in air as it passes through the bronchi and push them up with phlegm out of the respiratory tract.
Therefore ,with the loss of cilirary function, pathogens are retained in the lungs leading to respiratory tract infections
<span>1. Protozoa are single celled, eukaryotic organisms that exhibit animal-like behaviour.
2. Viruses consists only of genetic material and a protein coat, and they are known to cause a wide variety of diseases such as AIDS.
3. Fungi have characteristics similar to plants, but they do not have root systems like plants do and they also do not rely on chlorophyll to photosynthesize.
4. Bacteria make up this category.
5. Rickettsiae is a genus of bacteria that are intracellular parasites.</span>
C. Meters are the SI unit for length so would be most meaningful.
This mammal is found in open and semi-open habitats, especially grasslands with scattered bushes and trees, in south, central-west, and southeastern Brazil, Paraguay, northern Argentina, Bolivia east and north of the Andes,[4] and far southeastern Peru (Pampas del Heath only).[5] It is very rare in Uruguay, possibly being displaced completely through loss of habitat.
The DNA replication is a semi conservative in nature ! as the replicate has on parent and one daughter DNA ! so having two identical DNA , you have to take the DNA and change it into RNA having one strand and other RNA having opposite coding !
by this way, you can create a identical copy of DNA !
if you need any more info, comment !
