The genes carried by all members of a particular population make up the populations Gene Pool.
B. the nervous system connects bones
It was affected by natural selection.
If this is wrong someone please tell me.
Explanation:
Short-term exposure to air pollution can irritate the eyes, nose, and throat and cause upper respiratory infections, headaches, nausea, and allergic reactions. Long-term exposures can lead to chronic respiratory disease, lung cancer, and heart disease.
