Answer: atomic mass is the amount of protons and neutrons
Explanation:
Cyanobacteria were very simple organisms and performed were an role in changing Earth's early atmosphere. They carried out photosynthesis to produce the materials they needed to grow. In this process, they release Oxygen which is needed to sustain life on Earth for Humans and other organisms.
The statement that best describes ecological succession is that it always occurs in a predictable pattern. The process is also slow. The correct answer is C.
I think the answer would be A
