Cyanobacteria released OXYGEN into the atmosphere through photosynthesis
Answer:
not sure maybe b it sound right otherwise sorry
There are 56 neutrons. To find them, you just have to subtract the atomic number with the atomic mass. If you dont know, the atomic number is the number of protons (and electrons) in an atom. The atomic mass is the number of both the protons and neutrons. Of you subtract the atomic number, you get protons.
Answer:
organ systems
Explanation:
cells combine to form tissues, tissues combine to form organs, and organs combine to form organ systems such as the digestive system.
