Answer:
B
Explanation:
organ system is two or more organs working together to perform a specialized function.
The answer is: The sun is called the ultimate source of energy because it is the source of almost all energies of the earth. Plants convert light energy from the sun into chemical energy (food) by the process of photosynthesis. Animals eat plants and use that same chemical energy for all their activities.
"<span>A stone pyramid" is the one building among the following choices given in the question that </span><span>is an example of the application of Bronze Age architectural innovation. The correct option among all the options that are given in the question is the second option or option "B". I hope the answer has helped you.</span>
