These structures are part of the and are composed of that can assemble and disassemble.

The answers are cytoskeleton and microfilaments.

Explanation:

Microfilaments, or actin fibers, are the most slender fibers of the cytoskeleton and are found in the cytoplasm of eukaryotic cells. The polymers of these direct fibers are adaptable yet at the same time solid, opposing pulverizing and clasping while at the same time offering help to the cell.The development of the phone layer, organelles, and cytoplasm is altogether identified with the tubules and fibers. You will likewise discover numerous microfilaments in muscle tissue. They are called myofibrils when you discover them in muscles. The two proteins myosin and actin cooperate to help the muscle cells unwind and contract.Microfilaments and microtubules are key segments of the cytoskeleton in eukaryotic cells. A cytoskeleton gives structure to the cell and associates with all aspects of the cell layer and each organelle. Microtubules and microfilaments together enable the cell to hold its shape, and move itself and its organelles.

cytoskeleton and microfilaments

Explanation:

These structures are part of the cytoskeleton and are composed of microfilaments that can assemble and disassemble.

Oxygen is inhaled so that Dioxide can be exhaled, that is just how breathing functions.

Explanation:

We require this system for our survival.