Darwin noticed that there were different kinds of the same species. For example, he studied four different kinds of finches. Each one had a different beak and are different kinds of food. This was the first time genetic diversity had been so obvious to humans.
Answer:
The correct answer is microfilaments.
Explanation:
The cytoskeleton of our play a significant role in providing mechanical support and maintaining the proper shape of the body cells.
Cytoskeleton is composed of mitrotubules, microtubule and intermediate filaments.
Microfilaments are also known as actin filaments that composed of actin polymer that interacts with myosin during muscle contraction.
Microtubules also helps in cytokinesis,cell movement,maintenance of cell shape,cellular contraction and relaxation.