One explanation could be the differences in climate (environmental factors). The climate in northern Mexico could support the reproduction of the mosquito species, which is a vector of the dengue virus. Other environmental conditions that influence its endemicity could include living conditions and sanitation. The other possiblity could be that the people in the US have developed immunity for the disease, therefore, are unaffected even when infected by the virus.
Answer:
1. emigration the movement of people from one place to another
2. immigration a situation in which resources are being used up at a faster rate than they can be replenished
3. migration the leaving of one's homeland to settle in a new place
4. overpopulation the movement of people to a new country
5. sustainable development a situation in which the birth rate is not sufficient to replace the existing population
Explanation:
Those are the five invertebrate groups in the animal family tree
Answer:
it is both
Explanation:
it's manure because it's waste matter n a fertilizer because it make plants grows when added to the soil