Answer:
a
Explanation:
a lipid is the right answer
It is because it's surface area is responsible for the production of ATP molecules.
Sea anemone's stomach serves as a "circulatory system" because it is a <span> gastrovacular system.</span>
The very first microscope was made by Robert Hooke and was a simple looking microscope. It has been many years since then and technology has evolved more and more. Modern microscopes can see things so small they’re invisible to the human eye.
The study of cells will have evolved as well, with scientists discovering something new everyday that will go in future textbooks for future generations to learn.
The impact of the modern day microscope has helped so much with the study of cells.
