Approximately what fraction of all coral reefs have been lost or are at risk?

Adrought killed all the plants in an agricultural farmland. gradually, due to wind and some birds for. nearby areas, new plants started sprouting l. what stage of succession was taking place in the farmland? a) competition b) nudation c) ecesis d) reaction e) migration

About how much of the cell mass is watet

Introducing minvasive species to an ecosystem results in an increase in biodiversity is it true or false