How is meiosis related to natural selection
Meiosis creates genetic variability in a population, this means that more and more organisms have different traits. Some of these traits make an organism better adapted to survive in its environment. Those with these traits are more likely to survive (natural selection).
Answer:
In our respiratory system, there is a pair of external nostril situated above the upper lip that receives atmospheric air and passed to the pharynx (a common passage for air and food). The pharynx passed this air to the trachea via larynx (known as the soundbox). The trachea is an extended part which is divided into left and right primary bronchi. Bronchi divide into secondary bronchi, tertiary bronchi, and bronchioles that ending up in thin terminal bronchioles. Each terminal bronchiole constitutes a number of irregular-walled, thin and vascularised bag-like structures called alveoli which are the primary sites of gases exchange.
Explanation:
The definition of watershed is
"any point on uphill from where water flows downstream wither in the form of river, stream or rain water".
From the definition we can say that watershed (either natural or man made) would me anything that is present in that area where the water flows downstream to houses, parks, and dams.
I have attached picture for better understating.
Cells are living little parts that their functions are to produce food in a plant or keep alive something, cells also have the ability to replicate.
Mark brainliest if this helped enough!