this is in order from the top down :
city hall
powerhouse
border patrol
streets
factories
postal service
warehouses / storage buildings
trash / recycling facilities
Hope this helps :)
An endotherm, also called as a warm-blooded organism, has the ability to generate heat internally. One advantage to being an endotherm, instead of an ectotherm, is that an endotherm can generate its own body heat. This kind of organism can create a favorable level of body heat that is independent of its environment. Endotherms include mammals and birds.
A. Competition amoumg large predatora
Answer:
Even a slight reproductive advantage will eventually lead to the elimination of the less well adapted of two competing species.