A very large star of high luminosity and low surface temperature. Red giants are thought to be in a late stage of evolution when no hydrogen remains in the core to fuel nuclear fusion.
Cnidarians were the first phylum that scientists saw tissue level organization in. Tissue level organization meaning cells all of one type start to function in a unified way.
Answer:
D. H+
Explanation:
hydrogen protons are found in water
a process called protolysis occurs where water molecules exchange protons with each other
The benefits were more species and also more resources.<span />
