The answer is all of the above
Photosynthesis turns carbon dioxide and water into oxygen. The chemical change happends. It is an Endothermic reaction cause energy needs to be in and order for photosynthesis to happen. Then then the plant puts the food away for later lime in the winter or when it is dry
Orientation of bonds between glucose monomers.
Yes, It seems that evolution has occurred in this area.
Explanation:
Evolution refers to a phenomena in which new traits or alleles that favor a better survival of organisms in a given environment, become fixed in the population.
Evolution is characterized by appearance of new characters and change in allele frequencies.
In the given situation we find that the frequency of the recessive allele in the population has changed over time and the percentage has become fixed.
So, we can say that evolution has occurred in the robin population