What happens to the air as it gets father away from the heat source

Many kangaroo rats live in the sonoran desert of the southwestern united states. they have a variety of adaptations for living in the desert. under which circumstance would the kangaroo rats of the sonoran desert be most likely to develop new adaptations by natural selection?

Using meiosis, the sporophyte produces spores that are .

The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million