A diagram of the sequence of movements or actions of people or things involved in a complex system or activity.
Answer:
Oxygen
Explanation
Cellular respiration means taking Oxygen and using it to "breathe" and also be used in many other processes.
Fossils can show structural similarities and differences in organisms over time revealing the vast diversity of life forms that have and continue to exist on Earth.
Comparisons between living organisms and fossils also allow scientists to make inferences about the lines of descent.
B) Chemical Energy
It makes light energy into chemical energy for the plant to use.
Hope this helps :)
Different combinations of genes in the nucleus
