What organism is believed to be responsible for the rise in oxygen in the atmosphere during the early times of our planet?

A. Plants
B. Cyanobacteria
C. LUCA cells
D. Eukaryotes

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

Iwanna go do something with my ideas? ?

Name 3 injuries and two diseases that affect the skeletal system.