Place the following events in sequence: A) Cells send negative feedback to glands; B) Hormones are released into the bloodstream; C) Hormones are absorbed by target cells AA, B, C BB, A, C CA, C, B DB, C, A

20 the compound al(nh3)2 has atoms of nitrogen.

Tropical rain forests support more species per unit area than any other terrestrial ecosystem. what is one way rain forests are important to the health of the biosphere?

The table presents the average day and night temperatures in five cities. it also reveals whether a city receives substantial rainfall (wet climate) or little rainfall (dry climate). which city’s rocks are likeliest to experience frost wedging, and why? a) city a because the consistently subzero temperature would prevent water from melting b) city b because it is a wet region and the temperature fluctuates around the freezing point c) city c because it receives plenty of rain fall and the weather is moderately cool d) city d because the hot and dry weather would cause rocks to absorb water