Cilia, tiny muscular, hair-like projections on the cells that line the airway, are one of the respiratory system's defense mechanisms. Cilia propel a liquid layer of mucus that covers the airways.
The mucus layer traps pathogens (potentially infectious microorganisms) and other particles, preventing them from reaching the lungs.
Cilia beat more than 1,000 times a minute, moving the mucus that lines the trachea upwards about 0.5 to 1 centimeter per minute (0.197 to 0.4 inch per minute). Pathogens and particles that are trapped on the mucus layer are coughed out or moved to the mouth and swallowed.
Answer:
It avoids pregnancy and STD's. (Sexually Transmitted Disease)
Explanation:
1) feelings of euphonia
2) pain relief
3) drowsiness
4) sedation
these are 4 side effects of opiates
Yes we should opt for sustainable techniques while construction and developmental activites because-
- It is sustainable and long lasting.
- Environement friendly.
- Cost effective in long run.
- No harmful effect on humans.
- Judicious use of available resource.
Explanation:
The world is undergoing an overarching danger of disastrous peril which would be strong enough to wipe out the last traces of human civilisation to its bequeathed end. To prevent such happenings, it becomes urgent that we employ sustainable techniques in construction and developmental activities.
These sustainable techniques are advantageous to humans at large due to the following benefits-
1. It is sustainable and long-lasting- The process is sustainable and hence has a longer shelf life as compared to other processes. Due to its sustainable nature, the process has the least impact on other processes in its surrounding.
2. Environment friendly- This is another important aspect of it. Sustainable techniques are distinct from others due to its environment-friendly nature.
3. Cost-effective in long run-These techniques prove to be cost-effective in longer periods. Due to extended shelf time, the cost per unit time tends to be low.
4. No harmful effect on humans-Sustainable techniques casts minimal to no impact on human, unlike erratic techniques.
5. Judicious use of available resource-Sustainable techniques re judicious in the utilisation of the existing resources. They make the optimum utilisation of the resources thus enabling humans to enjoy the maximum potential use of the resources.
Answer:
True
Explanation:
Female of reproductive age lose blood every month, thus dietary iron is needed to replenish the lost
PRESS THE CROWN
