Question Detail
Question
Anton van Leewenhoek made an important contribution to the development of Cell theory. How? A. He said that all organisms are made up of cells B. He articulated that all cells come from pre-existing cells C. He invented the first microscope and saw the first cell D. He invented more powerful microscopes and described cells
Correct Answer
Option D is the correct answer.
Detailed Explanation
Leeuwenhoek's major contribution was not inventing the first microscope (that's disputed) but his skillful creation of powerful single-lens microscopes that allowed him to be the first to observe and accurately describe living cells, such as bacteria, protozoa, and sperm cells, opening up the microscopic world.
Hint
His skill with lenses let him see things no one had ever seen before – living 'animalcules'.